400 hp.... ARifle takes 5 hp per hit, so 80 rds; 3 clips, 30 rds each, the rant is dead, but that's if every bullet hits. And yes, dretches are a pain right in the buns... probably the most powerful anti-infantry alien out there besides a goon or rant, when handled correctly. You know, unless you have a helmet, if a dretch jumps on your head, it takes 96 hp from you... and if they have poison from their booster, then you're as good as dead unless you hit the M key just as they hit you.. and even then you're dead because they'll come back and bite you again. ARifle would take five hits to a dretch to kill it... fat chance, you're lucky to hit 3 off of him unless he's a newb and goes in a straight line for you and stays off of the walls & ceiling.