I want to see Jack's stash of weapons, as well as all the illegal stuff that Abe has.
It would be neat to have a scene that shows the sports shop and then have Jack and Abe walk into the basement and have the entire back round change from tennis balls and baseball bats to bullets and sharp sticks.
Seeing a Rakosh getting torched by a flame Thrower is a must.
I would also like to see the final firefight that was at the end of Gateways. Hurricanes, guns, and grenades that would be a kick ass scene.