if i got 2 ps3s and 2 killzone 2's ........

will i be able to play against my bro via ethernet cable or wireless since kz2 got no 2 player option it might work like this , i don't have 2 of each i might buy if this actually works , so does anyone know ? thanks peace

if you both have internet, yes. Otherwise, no.

so there should be internet , with no internet it won't work hmm , if am not wrong some games like ut3 and others got lan network you can play with no internet , i think kz2 should get a patch for this don't u think so ?

Not sure if k2 has a lan option, I can't remember. If it does, you need a crossover cat5 cable, not a regular cat5 cable. That's if you want to hard wire the 2 ps3 directly to eachother or wire 2 routers to eachother. Otherwise you can do it on a wireless router/switch. I just cant remember if K2 has that feature. You both can play online though at the same time.