I apologize for swiping the title of the thread here: http://www.ntfa.net/forums/index.php?showtopic=2234 but I'm out of inspiration right now. In that thread are some really cool things you can do with Octane, but for me the biggest is that you can use his tanker top as a shield on either arm. I just did that with my Octane and he really looks cool with it. Sorta like a tower shield, or a riot shield.
I was actually more interested in the minor modification that was done to his legs... He looks better after they moved the legs forward, his 'gut' isn't sticking out as far any longer...