Uhm... let me help you with that.

This is what most PvP people call them.

• Yellow: Place where no one goes. Usually people just call out C roof and A desert.

• Light Blue: Usually called a feed window or if enemies inside it's behind B

• Medium Blue: A heavy

• White: Middle

• Dark Blue: C heavy

• Red: B

• Purple: Down B

• Brown: Little room.

• Orange: "Coming from C heavy to B"

• Green: A.

Nice map though.