User blog comment:Callofduty4/Why is it a sin for Treyarch to rip some aspects off of Infinity Ward but OK for Infinity Ward to rip off some stuff from Treyarch?/@comment-1518024-20091228154547

So many WW2 games are made because it is a war well which its hard to explain but is easier to put into a game than any other war. WW2 games fit into most genres of gaming such as strategy and FPS. Modern warfare can made into a FPS easy peasy but making an entire game which is strategy made on Modern Warfare is hard because war a lot now consists of just bombing with jes than bombing some more than artillery strikes then helicopters. WW2 was the last big war where conventional warfare was used. I will say before, if Treyarch had made an entirely new system, people wouldn't of liked it. I mean the new PC multiplayer system on MW2 isn't exactly well recieved by all. About to get a headshot then the host leaves.