I think SP is a good tool to help with aim and get a feel for your sensitivity and button layout. However, it's nothing at all like multi... I voted "idc" because I usually don't. For some reason, though, I couldn't help playing through this one. I guess it was just because this is supposed to be the last one. I played through on normal then co-op on legendary. Judging from my current skill level, though, I should get some more practice. Just a Lt. right now, but I'm proud to have it. Worked long and hard for my Officer Pin. Anyway, I digress. SP, good for learning the ropes... not for learning multiplayer tactics.