I was playing on hallway and I randomly got this idea. :P
Okay, so what happens is:
No-one can build in this game mode. Instead the more amount of times you capture the enemies intel, the more structures you get.
So if you captured the intel, lets say, twice, you might have a few sniping spots and an intel building.
The first team to get to a set amount of intel captures, wins.
So it's sort of like CTF, but I guess the more times you capture the intel, the more buildings you get.
People might also want it so you get 50 blocks, but you can't get a re-fill until someone captures the intel, then they get more blocks.
What do you guys think?