Use the Olympus' cannons to destroy various ships, then proceed by following Salter. Clear the halls up ahead of enemies. You'll reach space soon enough. Defeat a few more floating troops, then enter your ship. You'll now have a chance to defeat the following Most Wanted members:
- Jr. Lt. Moudy Hamo
- Cpt. Rion James
- Sr. Lt. Khou Le
Once the various cutscenes have played, select your loadout and continue. You'll meet heavy resistance but you've got a lot of backup on your side, including air support. Use it to take out the designated red towers (plus some minor targets if possible) and keep pushing onward.
Since the path of the rest of this mission is linear, and since there will be no more missable Weapons/items/pickups or enemies, and to avoid spoilers, the advice for the remainder of the mission should simply be: Stay healthy, keep high on ammo (refill at every ammo crate), use your seekers, drones and other equipment if you deem it necessary. Good luck!