I'm not a COD guy, I prefer battlefield.
I always included my partners into playing it with me. Either taking turns or, as my partner for life, has come to love. Minimap watcher!
She calls out whatever is on the radar. Saved my ass so many times. I know it has to have made somebody mad, cause there's times when she notices someone on the minimal and tells me turn around or something, and I end up getting em.