Hi, I am a big fan of Ace of Spades and I love games that run off the source engine.
I've thought about having the devs consider adding built in voice commands such as, "Cover Me!" or "Make Repairs!" or maybe even "Fall Back, we're surrounded at the front!" to make it seem like a much more realistic and strategic experience.
This would be possible by using Z, X, and C as voice command buttons like TF2 and Counter Strike.