Don't underestimate tunnel beast T.T 2.6k'd my main char lol :/ Also, a good tactic for biological is predator form > agile exposure > destroy > agile exposure >destroy, then when predator form is gone use agile exposure > immobilize. Helps if you have the extra 25 focus regen per turn but this has helped me pull high numbers on tough creatures,
Totaly luck based. Hope your enemy doesn't heal himself and doesn't fully attack spam one character on your team and you may win if they don't use a bs move (like 800 damage when your highest hp is 400 for instance). In serious need of rebelancing.
Be sure to bring a plasma gun to final boss fight since it can take out all human enemies in 1 hit. Combined with the mg by the box it makes the boss much easier to survive.