[Idea] Training grounds

[Ben]

It'd be cool to do this in some interior such as the big crack house factory thing that you have to raid near the end of the game and kill Big Smoke (last mission?).

Then every storey would be a level, and basically you'd go to LS and enter the house, and pick which gun you'd like to do it with.

And the final guy could be Big Smoke maybe?

I think that would just make it too much like the actual last level of the game, people would play single player if they wanted that imo.
I do like the idea about it being that interior your speaking of. What if though it was different people, not Big smoke or anything related, like the last boss was the guy wearing nothing but boxers or something