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-1651748-20091228021728

But on that same point though. Infinity Ward has taken a few things from Treyarch. Let's say it's a painting. Infinity Ward takes it, they completely erases it, make a whole other painting, that can still satisfy what the last one did. However Treyarch just adds gliter and hands it back. Treyarch needs to make their own system, they just copy perks, redisgin weapons and maps and make a similar game. Infinity Ward changes a lot of stuff, look what they did to Modern Warfare 2. Clearly you must agree Infinity Ward makes the most origanel games.