Good question I have no idea. I haven't done lair as marines in a long time. I always found the fist is the most effective warrior killer. I think it's still 3 strong attacks to kill a warrior with a fist. He just has to not be the target, which is easier to set up thanks to the updated AI mechanics.
Warriors target a combination of closest target and highest damage dealt to it. If you stay a fair distance away and don't deal any damage until it swaps target, a fist user can easily get behind the warrior and charge strong attacks. It only requires that people help protect the fist user from gaunts while he charges up. The strong attack on the fist also used to stun the warrior long enough to chain stuns on it... so you only needed to land one good strong attack to lock the warrior down and kill it.
its 5x Heavy Bolter for easy farming if you want to advance and kill the warrior plasmakanon and shield bro with poerfist works really well
I once made a loadout with a Meltagun, Plasma Pistol and Ammo packs. My Plasma Pistol was my main anti-nid gun. I didn't use the Meltagun until the warrior showed up. So I see the warrior, get my Meltagun out, do a full burn and ! nothing happened! Ok maybe I didn't do it right, get behind it, do a point blank full burn (This was back in the day)... nothing. That's right, the Warrior was pretty much inmune to the ailment. I haven't tried using it ever since, if anyone is willing to know if it isn't bugged anymore I'd appreciate it. I don't have the willpower to try that again.
oh damn I wanted to write for easy farming on hardmode xD and not what I did there, jeah always go hardmode
