Quote from wch on the 14th of October 2011:
The standard for CTF is 4v4, and it's not even an option.
Good job.
^ this
3v3 and 5v5 would both be crap. maps are too big for 3v3, too small for 5v5.
and by maps i mean ironworks, siberia, jap castles. rest dont relaly matter tbh.