Just played Arica Harbour. What an awful map - couldn't make any progress at all unless you're a sniper. Trying to earn some medic progression - not the map to do it on methinks.
Arica harbor is brilliant after the first 2 M-Coms, best bet is to go Engineer or sniper for the first 2 M-Coms, then switch to Medic after they've been taken.
The best map for Medic is Nelson Bay, it's all infantry so no tanks running around and blowing you up, and people bunch up in little groups.
I put down a few medpacks on Nelson bay near the first objective B, and well:
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