Ok here's a good feature suggestion for once:

A special trigger zone for flag carriers. If you are carrying a flag, it sets to 1, otherwise it is 0. Completely local to the flag carrier. Only one trigger would be needed (you wouldn't need one for each team, unless you are really bad at JCS). Having just one trigger like this also makes things more interesting.

There are obvious possibilities for CTF and flag run levels: for example, perhaps holding the flag will close off certain shortcuts. Or it could open up (or close off) a full NRG carrot. I can also see this being used for assault levels, and other more creative uses.