BF2S Forums New glitch (At random)

I was playing karkand and i was MEC. The round just started and it let me spawn at the USMC main base. So i thought "ok, i've been switched to USMC." As i spawned i saw the tank and got inside of it. I looked on the mini map and i seen none of my fellow team members at our main. So i jump into the tank and drive off, i see a few guys and i kill them, but after i see more of them coming down the hill i notice on their uniforms that they are USMC. So in short i was MEC and spawned at the USMC main base. I've never heard of this glitch. Anyone heard of it?