I use it to watch how I attack certain drop zones, particularly the first drop on many maps. Getting a lead out of the first zone leads to a win the vast majority of the time.
I've about perfected my frag grenade toss points and many times can get first blood with a grenade toss before the other team can even reach the zone. I also watch aim points for where RPGs hit in certain drops... people tend to post up the same spots in certain zones so I know where to aim and shoot even if I can't see them in those spots per se. it's a great tool to sharpen your tactics.
