[b][i][u]THAT IS NOT BLOOD![/u][/i][/b] if you actually took time to study, you'll find that it's some sort of liquid to recreate the high pressure planet they're from. This "blood" can be seen spilling from their factories everywhere on Mars. If you go into the room before killing Taur'ucs generals, there's a small bridge thing in front the ramp and under it there's a big pool of high pressure sludge. Next time don't be a pussy about these sorts of things and if you really insist on being one, at least study up on it.