To the people saying to hell with fairplay and etiquette:
Yeah, you can waggle your fingers and adopt your holier-than-thou attitude of how this is an RP server and how we need to be 100% realistic as militaries to a tee, but also remember this is a GAME. People PLAY this GAME to have FUN. When you see a hostile player, you shouldn't be thinking to yourselves "this is a hostile combatant, I must kill them through any means necessary". Christ, no! What are you, the terminator?
We're fighting wars where the same characters are seemingly able to survive encounters over and over again and Battleships are magically repaired after two hours (and in some cases, 30). To top it off, we have slips of paper that tell us what we can and can't do. The list goes on. How can you argue for approaching encounters realistically in an arcade game (with an RP server within).
@Gagadug.'s attitude is how you should deal with things. Not "expect to get repeatedly piled on because we're robots incapable of grasping the fact that this is a game people play to have fun".