So, I know this might look a bit silly, but I really feel this awesome game deserves a better, cooler logo. The current one is too simple and doesn't represent how badass the game is. For example, the "O" could be an iron sight itself. I would love to help with that, but I'm not an artist myself, so here's an idea: what about a contest for a new logo? I believe there are lots of digital artists here, right? So each of them could design an stylish logo for the game and everybody votes for their favorite.
Great bands have memorable logos (Iron Maiden, Metallica), so I always thought great games should have memorable logos too.