Heroes vs. Aliens

[Varyon]

Originally Posted by ak_aramis

armor that can handle a significant GTL 10 or so assault rifle with minimal (but consistent) penetration

I don't recall any indication of their armor as doing much against the weapons in Aliens (lack of exit wounds may well be due to the fact the marines were using APHEX), although maybe they were shown to be more bullet-resistant in Resurrection (of course, those are all non-standard xenomorphs IIRC). Certainly they have some degree of natural armor, but I'd put it more in line with Medieval soldiers than futuristic ones; in GURPS, probably DR 4 (in d20, it would depend on their intended Hit Dice and CR, but comparable to the chain shirt - +4 - feels roughly about right).