[Hobbes]

Spearhead Single player was actually good just way to short. Also one of the reason to find out how to earn all the medals sometimes leads to little extras in the game like sniper mission in AA where after I actually managed to get all those dumbass bots through that level alive you got that Medic Bob sequence pops up and he comes after you like a blood hound with a rocket.

I believe the first 3 medals are for completing the sp mission on each level.