User blog comment:MilitaryBrat/Master Chief vs Xenomorphs/@comment-4749025-20120204030950/@comment-181289-20120204034332

First of all, the Alien shown in the images is the standard Alien, so that's as far I'm concerned the one being used in the fight. If MilitaryBrat was using the Bullet proof Aliens, he's had to modify the fight because it wouldn't fight the fight guide lines for the wiki. 50 bullet proof Aline against Master Chief wouldn't be fair, wither the Aliens have to modified of Chiefs weapons would have to be modified.

On the Shields are always up, and I've yet to see proof they allow water pass through them. The Mjolnir Shield works like a solid layer, it should keep all forms of matter from touching his armor.

Lastly, the Predators Shurikan in AvP is resistant to there blood and so is there ceremonial dagger. In AvP, Scar used it multiple times on an Alien and it never melted. There claws can be treated to be acid resistant as well, Wolf in AvPR used them against the Predalien and they never melted.

On a side note, I don't think it's eve been confirmed the Space Jockey made the Xenomorphs, but that point aside the main reason I brought up there shell being immune to there acid shows there acid dosen't melt anything made of atoms. If that were true it would melt anything and everything.