Well, if I remember right in the Aliens versus Predator (I only played second part) you can cloack as long as you want, but it takes energy to cloak. So it takes about 1/4 of your energy to go invicible, then if you go visible and then start cloaking again it takes another 1/4 of you energy meter. Or what the heck is it called anyway. But the soldiers will notice you, if you get too close or if you hurt someone. And Iíf I remember right, they had some kinda movement sensors.So they can see you if you move... too close, I think. But the doctors didn't have one if I remember right. But there's all kinda other things that took your "energy" meter down, like healing. So you are not allowed to cloack forever. But your idea was good too. Except the "can't attack until uncloaked". That wouldn't be predator anymore. That would be... Some spy from Team Fortress 2. Just saying!
And I think the 2nd movie was okay, but there was just one thing I didn't like in it... the teenagers! Why does AvP movie have teenagers in it? It could have been so good, but I don't like the "teenager" horror movies so much. That was the thing taht I didn't like in it.
Well, better stop writing now...
