I'm such a noob i have been playing this for a few months now and never knew that. I'll really have to try and use the tactical map more often if i can.
i also have a question. Will i be able to use what i know in coh1 on coh2? or am i gonna have to learn all over again?
Yes, the basics are the same. There are a few new mechanics in coh2: true line-of-sight, being able to jump over fences and stone walls.