CTF_2towers A2.1

This has a few new stuff added.

Exploit!
The elevators can be used an shield to protect the Intel carrier in the ememy base.

This update fixes that exploit and prevent lift abuse.

New:
players can't use the lifts when carrying the Intel.

Added lighting and fixed a minor door glitch on one of the lifts.

KNOWN BUGS:
I've also noticed the the "3" sign in one of the bases is stretched out far. I've already fixed this twice and it still does it. The stretched texture doesn't show in in hammer.