Editing Warhammer 40,000/Tactics/Mechanicum (30k) (section)

===Elites===

*'''Enginseer Auxillia:''' 1 Enginseer + 4 Servo-automata for 65 points. Behaves similarly to the IG Enginseer, except you can add 1 extra Enginseer and give the Servo-automata (5 pts each) servo-harnesses (+5 pts each) to improve the repair roll of the unit. Can be used as source of Grav guns but without relentless they will suffer. Its best usage is almost certainly as a source of Nuncio-vox for your Thallax and Thanatar. Though they Cortex controllers at +15pts, it is probably better just getting a 2nd Magos and upgrading it to be tougher (and in the process, far deadlier) if your going to get that many Castellax units.
*'''Myrmidon Secutors:''' Sturdy SOBs.  T5 W2 3+/5++, 120 points for 2 Secutors + 1 Lord without the weapons. Can add 7 Secutors (+35 pts each) and must equip two weapons on each (ranges from +10 pts to +20 each, doubles don't twin-link). Can fire the two weapons in a single phase at the same target, Relentless but cannot run or make a sweeping advance. Annoyingly not that great an option as they cost so many damn points: At cheapest a squad will cost 180 which will give them either a combination of 2 Maxim bolters, 2 Volkite chargers or 50/50. You may notice both are assault weapons and the squad as standard comes with a Power axe, so one could potentially use them as a sort of heavy assault trooper; a job that is immensely better performed by the Castellax automata. At an average cost of 75 per model for 2X Phased-plasma fusils you can get an extremely unpleasant marine killer! Unfortunately this is its only especially useful set-up. The only reason this anon has immediately said "there isn't much these guys do that the Thallax do better" is because the Thallax can only take a special weapon as one in every 3... but with all the goodies the Thallax get this isn't that bum a deal, that and they get the Irrad cleanser and PPF at half price.
*'''Domitar Class Battle-Automata Maniple''': An excuse to never take the Myrmidon Secutors again.  It's essentially a melee automata geared to taking down Monstrous Creatures (aka other Automata), it can also handle vehicles and buildings in equal measure thanks to four attacks at S10 and its WS4 make it so it'll hit all other automata on 3's (even with HoW it's great since get D3 S7 hammer of wrath hits per model (roll once and multiply by number of models)).  Shooting wise it's pretty shitty for how much it costs, armed with only a missile launcher with Krak and Ignis missiles (the latter S5, 3" blast ignores cover... but AP6) and can purchase flak missiles (only 5 pts but you've got good enough Anti-Air enough anyway).  Thankfully it shines even when getting charged thanks to the Graviton Hammers forcing opponents to make disordered charges, and with Crusader you'll be dictating when your charges happen quite often.  Interestingly '''Frag-nades''' are purchased at 5 pts per model (essentially mandatory for them), but keep them away from tarpitts (Paragon of metal doesn't help out too much here, and getting hacked apart by a large mob of S6 fearless goons whose entire squad costs probably less than half your model is embarrassing).  Don't go thinking that it can take on every monster unit either.  Charge a few Castellax with Darkfire Cannons (or even go solo near their Bolt-Cannons) and you'll find that's a 175+ point investment down the drain.
*The price of these though is very prohibitive, a unit of Castellax with Siege Wreckers can do essentially the same job for less, and unless you know you're up against MC heavy lists there's very little reason to bring a Domitar.  If you bring them anyway, send them after pricey and important targets, Dreadnoughts, smaller terminator units and HQ. They are also the ideal candidate for Paragon of metal as squads would likely perform well, but are too expensive, and as such they function very well on their own.