One of the easiest Veteran missions in this game.
Do this once you've ran through it on Normal so you know where things are.
Quickly dispatch the Artillery points close to you, picking off groups of soldiers before you progress. Rockets will do a LOT of damage and once you're in their sights, you're in a bit of trouble.
The best method to use here is move up a bit, pick off everything you can see, plough through a bit further.
After the first two artilleries are gone (the hardest bit to clear in my opinion), move forward quickly to the others and get to the checkpoint quickly - be wary of tanks, but don't take too long.
Towers are very dangerous so keep your eyes open for them.
When you get to the very last bit (Where you're supposed to descend a hill), sit at the top and shoot everything. You can literally take out this whole camp without being touched. After that point, roll down the right just to be safe, and rush to the checkpoint.
Very easy mission, just requires a bit of time and you quite literally have to take out ALL the rocket points before moving on.