Editing Space Hulk: Deathwing (section)

== Gameplay ==
The game plays in a similar style to Left4Dead, but a few important differences are to be noted:
*The level maps are nonlinear; you can choose to take the shortest path, but you may want to take into account locked doors, potential killzone hallways, etc. You can also go exploring for hidden chapter relics and [[Standard Template Construct|STCs]].
*Ranged combat is actually a thing; you will need at least one or two guys on you team who can shoot accurately, as enemy rockets or gun turrets can easily put you out of commission.
*Weapons can jam, putting you in a bind if you're surrounded. Be careful not to fire your weapon too long.
*Be proactive about locking doors behind you, as genestealers will sneak up on you if you're not careful. Or you can just bash down doors if you need a quick escape route.
*You earn upgrades for your class as you level up, rather than finding them out in the field. This counts for both weapon loadouts and class abilities.

In the single-player campaign, you have a limited number of Psygates with which to heal yourself, revive downed teammates, and equip new weaponry (if Nahum isn't equipped with a Narthecium, you have to manage your health and Psygate usage carefully). There's a seven second warmup to use a Psygate, so be sure to activate it when you know you're in a position to defend yourself. You can pick any weapon available to all five classes, but you stick with your librarian powers no matter what loadout you get.

The Dark Angels get six different choices of unit (All Terminators) with a specific ability and loadout options:

*'''Tactical''' - The vanilla Terminator. While they start out with just a [[Storm Bolter]] and [[Power Fist]], these guys are still useful as they can revive downed teammates. They're also far more accurate than heavy weapons termies, which is important for taking out those hybrid rocket squads or gun mounts. Their weapon upgrade is the Heavy Flamer, Redemption Bolter, Lightning Claws, or the Spear of Caliban, basically an auto-fire [[Plasma Cannon]] that slowly regenerates ammo over time but does less damage than the normal Plasma Cannon, and lacks the explosive area of effect possessed by the regular version.
*'''Assault''' - The shieldbro Terminator. Put these guys on point to soak up bullets and melee attacks while you cover them. They come armed with a [[Power weapon#Power Maul|Power Mace]] and [[Storm Shield]], but can replace it with a [[Power weapon#Power Sword|Power Sword]], [[Thunder Hammer]] or [[Lightning Claws]]. Upgrades include Deep Strike teleport on enemies and energy shields. If you are playing with friendly fire enabled, don't let them use Thunder Hammers, or they will instakill every teammate within a half-a-mile radius.
*'''Heavy Weapons''' - The [[Dakka]] Terminator. Armed with an [[Assault Cannon]], these guys are great for clearing out rooms. They have shit accuracy, but that's not really a concern if there's Genestealers everywhere. These guys can choose to take a plasma cannon instead, or the "Vengeance cannon" which is an assault cannon with lower ROF and ammo count but higher penetration. They can also get an ROF boost, a deployable mine, and a hack boost upgrade for when you need to lock/unlock doors or turn machines on, making these guys valuable for when you can't afford to stick around too long.
**Veteran Barachiel in singleplayer defaults to a heavy weapons termie. He's pretty terrible at his job, but an assault cannon is an assault cannon. He doesn't level up on his own, but his hack boost upgrade is still there in the the player character's upgrade trees. He's also far better with a Thunder Hammer and Storm Shield if you get them for him, leaving you with the heavy weapons if you so desire.
*'''Apothecary'''- The medic Terminator. These guys are ESSENTIAL to your team, as you will take lots of damage as you progress through the space hulk. Apothecaries are equipped similarly to Tacticals, but can replace their Storm Bolter with a Redemption pattern <s>shotgun</s> Bolter that fires shotshells, or the [[Hellfire]] bolter that exchanges ROF for explosive rounds. Apothecaries can't heal themselves until they reach level three (so your team really needs to keep them alive as long as possible), and eventually they get a mass heal ability.
**The other singleplayer AI guy is Apothercary Nahum. He can heal himself as early as level one, thankfully, but like Barachiel can't level up on his own.
*'''Librarian''' - The magic Terminator. Armed with a Force Sword (or Force Axe) and Storm Bolter, these guys can straddle the line between assault and tactical in that they're decent in both ranged and melee. Where they really shine, though, is in psyker crowd control. They have knockback, chain lightning, fireballs, and even a telefrag ability that lets you eviscerate opponents up close.
**In singleplayer he is your main character. Which means he is OP as fuck, able to take every weapon in the game (but can use Force Weapons only if you take the stock storm bolter) with three upgrade trees.
*'''Chaplain'''- introduced in Enhanced Edition, armed with a Storm Bolter and Crozius as default, but can take any of the Tactical's weapons. The Chaplain can rez the entire team at once, temporary invulnerability, and a damage reflector.

Like the Terminators, the Genestealers come in a number of varieties as well.
*'''Genestealer''': The regular variety you will encounter. Their claws can hurt you, but they die pretty easily to a hail of bullets.
*'''[[Genestealer Hybrids]]''': Creepy bastards who wield human weapons against you, though they are extremely weak in melee. Most are armed with [[heavy stubber]]s, but the real threats are the ones with missile launchers, or the rare psyker.
*'''Warrior-Strain Genestealer''': Slightly bigger and stronger Genestealers who can spit acid.
*'''Stalker-Strain Genestealer''': Genestealers with partial invisibility. These guys will do everything to sneak up and take a bite out of you. In singleplayer they fuck up your radar just by existing and deal shittons of damage to Nahum and Barachiel, so don't be afraid to spam your powers and guns to get rid of them.
*'''Scythe-Strain Genestealer''': Big-ass armored Genestealers who will tank your bullets as the rest close the gap, though they're also slower.
*'''Broodlord''': Tough bastards who act as a boss. You will need to coordinate your fire to take these guys down. Before they zap you to death with psyker powers and rip you up all at once.
*'''Bio-Blast Strain'''- Introduced in Enhanced Edition. These are the suicide bombers of the genestealers, who will seriously mess you up if you run into one just around the corner.
*'''[[Genestealer Aberrants]]'''- These hybrids carry heavy mining equipment such as laser cannons or hammers, and are a bit tougher to kill compared to the other hybrids.