Editing Warhammer 40,000/6th Edition Tactics/Tyranids (section)

===Heavy Support===
This organization chart is easily the best in the codex. Pretty much everything is either decent (Mawlocs and Trygons) or solid overall (Exocrine and Biovores), so feel free to drop a lot of spare points here as this slot is the most competitive out of the others. That being said, you have a bunch of choices that wants to be in your army, so this really depends on what you brought from the other charts. Running broods of Termagants with a Tervigon? Carnifexes help bridge the gap of close combat. Using a bunch of Hormagaunts and Gargoyles? A Trygon Prime gives them the Synapse support, while Biovores and a Tyrannofex lay down the anti-infantry shots. Tyranid's Heavy Support is an all around versatile chart, so no matter what list you play, you should always consider investing here.

*'''Biovores:''' A unit to be respected by any footslogger with an armour save of 4+ or worse, Biovores are "mobile" artillery beasts that deliver spore mines directly to the enemy. The mines, when they hit, each create a S4, AP 4, large blast, and when they don't hit D3 Spore Mines will actually land on the field and remain present until they are shot or wandered into. It's not exactly what one would think of as "heavy" support, but it is probably among the best ranged anti-infantry support in the codex. Plus with the slight buff (Mostly unnecessary, except the extra wound) and point decrease, Biovores just went from being a good choice, to a solid choice. The buff to Spore Mines sweetens the deal, and they don't count as kill points if they don't hit and get shot at the next turn. The only problem is, one has to ask if more anti-infantry is really what one seeks when such is the strength of almost every other unit in the codex. In Apocalypse games, where long ranged ability becomes crucial due to the much larger average board size, they become far more viable as a way to deal with infantry blobs from a distance, they can be fielded in much larger numbers to swamp the battlefield in pieplates and spore mines.  

*'''Carnifex:''' Carnifexes start off at 120 point but can get very expensive once you start buying upgrades for them. They have three attacks base at Str9 and start with 2 pairs of CC weapons (two pairs of talons), but their WS is pretty average. They can hold their own against basic squads by themselves, but one hidden power fist will ruin their day in a heartbeat (or lack thereof). Even against a five man Space Marine Tac Squad, a lone Carnifex lacks the attacks and accuracy to clean up its enemies before it gets walloped, and a Krak missile or two to soften the beast up will guarantee its death. However, there is one important thing to consider: nothing dismantles tanks in close combat as well as a Carnifex. There are other options the new vehicle cracking power of many of the other Tyranid units but the Carnifex still holds the prize. Also hilariously the second unit in the codex with access to frag grenade equivalents. Toxin Sacs on the Carnifex gives you a rerolls to Wound for pennies. With 2 Twin-Linked Devourers, they become surprisingly powerful at destroying flyers (rerolling to hit), MEQs and TEQs (forcing saves), GEQ ICs (instant death), and even light to medium vehicles (volume of fire) at range. For only 150 points, with the option to be taken in larger broods, this setup rarely disappoints. Speaking of large broods, Carnifex large broods are a major point sink but are massively powerful, especially when they take the 4+ regeneration and are joined by a Prime for look of boss scenarios. All in all, Carnifexes have certainly seen some buffs in 6th edition, with the new Monstrous Creature cover rules, the changes to vehicles, and Hammer of Wrath and its points drop. Still sucks statswise when compared to a Daemon Prince. But they cost 120 points, so they're getting a fair trade off. Carnifex specific Hammer of Wrath gets d3 hits instead of just one; at strength 9, this is HUGE.  Base Screamer-Killers (dual scything talons) will be able to lay out loads of pain. Crushing Claws are now really good for them for only 15 points and the 4+ regeneration is AMAZING. To sum up, a really good vehicle dismantler while being decently hard to kill, the options of being in large broods and other options for fire support.

*'''Mawloc:''' Effectively a weaker, less accurate Trygon with the ability to cause damage to enemy squads as it enters play. When it Deep Strikes on an enemy unit, *EVERY* model underneath it takes a S6 AP 2 hit, vehicles being hit on the side; considering the large base size of the Mawloc, one can potentially hit a lot of models; and as an added bonus it ignores cover too. (And if it somehow doesn't clear the area, it inflicts ANOTHER S6 AP2 hit). It's not [[Pyrovore|outright unusable]] -- the two S6 AP2 pie plates part is still true -- but vehicles are only hit on side armour, and the survivors are ''NOT'' pushed out of the way anymore. '''This means that if you fail to kill EVERYTHING under the template, the Mawloc mishaps!''' (though this can be a good thing, because you have a 50% chance to go into ongoing reserves and just nom again the next turn) Hive Mind help you if you scatter onto a Leman Russ. It can still Burrow after a successful Deep Strike.  To lessen the sting a bit, it's 30 points cheaper. Still works with lictors only better now that lictors infiltrate. Pro Tip the Mawloc base is smaller than the template, so you don't need to clear everything just almost all of it.

*'''Trygon:''' The Trygon is a former Apocalypse heavyweight which has been scaled down for standard 40k games and is the smallest of the bio-titans and the only bio-titan to lack biocannons. An expensive model to be sure, it is still considered one of the highlights of the Tyranid codex. Like most other Tyranid Monstrous Creatures, the 6 Toughness 6 wounds (Formerly Toughness 7 5 wounds back in it's days of being a forge world exclusive, the toughness was probably decreased so that it wouldn't be COMPLETELY immune to S3 weapons like lasguns anymore while it was given another wound to compensate) allow it to take hits like a champ, its raw statline and Fleet, makes him a melee powerhouse. As Scything Talons got nerfed hard, they no longer are quite the bringers of death they were before. However, as toxin sacs can be bought for less than a gaunt, they can rather easily regain their rerolling death, even if it is for wounds rather than hits. It also has a respectably powerful shooting attack. As a final note, the Trygon itself does not have the option for a Mycetic Spore(but that's gone now), but Deep Strikes with the same Scatter-reduction rules built into its cost; you should always use this rule as it gets the Trygon into combat very quick. Can also leave a hole for 1 <b>infantry</b> unit per turn to arrive from after it emerges <s>(Pro Tip, combine this with the Haruspex or a Carnifex Brood)</s>(However Zoanthropes are fair game, or a big blob of devourer armed Termagants) 

*'''Trygon Prime''': We've come across one of the units that didn't change much from the update (Other than being 10 pts cheaper and have access to the Bio-Artefacts), but remains a viable choice nonetheless. The fact that it can Deep Strike and provide Synapse makes him suited for a fast moving list and being a back up Synapse creature in case something bad happened to your other Synapse creatures. You really have to take advantage of the Deep Strike rule to get your points worth, otherwise it will be a waste and be outclassed by a walking Hive Tyrant with Tyrant Guards. The fact you can equip Artefacts like the Reaper of Obliterax is enticing, although again, just taking it to use the weapon and nothing more will not only be a point sink, but will attract guns to shoot at it. However if you play to the Prime's strength and use his rules, then he's worth taking. Upgrades are't needed, although Toxin Sacs and Regeneration are great, albeit the latter is expensive, which you need to keep it cheap unless you're playing a game where you have plenty of points to spend. Toss in a Toxinspike tail if you know you'll be facing high toughness monsters, otherwise keep him bare as he can still tear units apart and haves enough wounds to see him through the mid game and beyond. Given that he costs 40 pts extra than a regular Trygon, while still keeping most of the same stats that makes him good and provide Synapse, you won't be disappointed in the Prime if you use his rules to your advantage. 

*'''Exocrine''': Another new model with a big gun that's Assault 6, Str 7, AP2 shots. Or it can drop a big blast that's also S7 AP2. Park its butt for a round, and it's +1 BS (As an extra thought, give this adrenaline glands and have someone cast onslaught on it, it can stay stationary in the movement phase, then run a re-rollable D6'' then shoot at BS 4). It's stats are slightly weaker than base monster stats but it can still hold its own in a fight. Too bad the range isn't all that good, so make sure it has a few meat-shields protecting it. 
 
*'''Tyrannofex:''' A primarily ranged Bio-titan; This unit is of hotly debated usefulness. Scorned by some, and cherished as an unassailable bastion of destruction by others, they are ultimately models that lack a unified purpose. Costing five more points than a Keeper of Secrets, T-Fexes have six wounds, a toughness of six, and a 2+ save, meaning they are all but invulnerable to regular infantry. Their standard build is bristling with anti-infantry weaponry, sporting two flamer templates and a short range large blast, but most people don't feel they particularly need more anti-infantry support from such an expensive unit. What the Tyranids do need is anti-armour, and that is something the Tyrannofex provides, but at considerable cost and with remedial reliability. Fans of the T-Fex insist it is a perfect tool because it draws fire away from your more important units without flinching, while opponents detract that the T-Fex's weakness is being ignored. The model is so costly that one must sacrifice whole broods of other units to field one, so it doesn't always hurt the enemy to just not shoot at the T-Fex. The reason why their use is debated at all is because T-Fexes are the Tyranid codex's only long range anti-armour units, providing a S10, Assault 2 firearm that can reach across the board, letting you crack open Land Raiders from a long distance. Ultimately they are slow, fill a niche by desperation rather than proficiency, and should '''not''' be used in games with point limits below 1,500. If titans, superheavy tanks, gargantuan creatures, and stompas are appearing on the board (such as in a game of apocalypse) T-fexes find themselves overshadowed due to the sheer number of biocannon (all of them being S10 AP3 Heavy 3-9 weapons) equipped units that will become available to the tyranids. But they do provide a nice backup to the gargantuan bio-titans. A good use for them in apocalypse is to clear away super-heavy units that would otherwise tie down your Bio-titans or threaten your army while leaving your Apocalypse Bio-titans free to focus on other things. Additionally, they make for excellent Titan finishers. Essentially, treat them as more expendable shadow sword equivalents. For some incomprehensible reason, both the Acid Spray and Rupture cannon are only AP4, making them useless against MEQs, seriously, it's chances of penetrating a land raider's armour is *identical* to it's chances of getting by a marine's armour save, what the fuck? Alternatively, a Tyrannofex can be used as a linebreaker unit, since most power weapons are ap3 now.
**Alternate use - As said previously, the secondary weapons are created primarily for anti-infantry. Therefore, make the tyrannofex a complete infantry hunter (Your elite slots should be your anti-vehicle. They do a much better job). In the new edition thorax swarms now count as weapons in their own right, meaning they count towards your total number of shots per turn, so gone are the days of the triple-template Tyrannofex. However, thorax swarms no longer have to be taken, and electroshock grub now have the haywire rule, giving the Tyrannofex some close range anti armour power and a surprisingly good overwatch weapon against charging Dreadnoughts. With a 2+ armour save, T6 and W6, deploy as a line-breaker (which will also qualify this beast to be your DISTRACTION CARNIFEX) and force your opponent to choose between unloading ALL his firepower to kill it, or retreating his units out of cover, which could work well for your other units. And don't forget that it's STILL an MC, so don't be afraid to smash any vehicles unfortunate enough to get within charge range. Give this creature regeneration and it'll survive the whole game. 

*'''Stone Crusher Carnifex (Forge World):''' your basic fex with 2+ armour, -1A, no talons, AP1 crushing claws and it will not die USR. It's basically the ideal [[DISTRACTION CARNIFEX]]. It's absurdly cheap in point cost (but not in real money - this is forge world after all), until you realize that there is no mycetic spore option. Its a realy bad idea to footslog a Carnifex all over the board - not even 2+ and IWND can save him from being shot to death. Stick him behind a mob of gaunts until he gets to the enemy.