Tip 1: Decoys are great for most turrets, but don't waste them on the standard fodder or straight-line beam firers.

Tip 2: Upgrading your supply truck sounds good in theory, but you'll miss those repairs when they're gone.

Tip 3: Popping the APC up front is a viable tactic throughout the game, thanks to its cheap upgrade costs when compare to the tank
The shield's nice, but it's not a requirement for your convoy.

Tip 4: Never approach a beam turret head-on. Unless other factors are at play in a mission, always attempt to approach from the side, or else you'll find your rear-markers burnt to a crisp.