I took a couple months off from games, but coming back to BfN, I now have 1 Platinum, 13 Gold, and 3 Silver.

Silver Levels:
Adrevea River (however you spell it)
Liberation of Camp 4 (very close to gold)
Pannaka's Diversion (just missing it)

Any gold tips on these three levels? I know, I know . . . practice, practice, practice -- but when you're consistently close but with no cigar it makes you wonder if there's a tip or shortcut you've missed somewhere.

How's everyone else doing? Am I pretty horrible in this game or I am about par?

With Panakas diversion, you have to always have your cannon ready. The second you fire it, charge it up!