Mission 1: Semper Fi

1. Follow Roebuck. You will come to some huts up ahead. Take cover to the right, behind them, and eliminate the enemies behind the barrels straight ahead.
2. WARNING: Be careful of grenades in this first encounter. The enemies behind the boxes throw them with reckless abandon.
3. When they're down, crouch behind the barrels to the right of the boxes. From here, you can make your way left, around the corner of the burned building. There are enemies right around the corner, so do so cautiously. Again, be weary of grenades.
4. Head to the right inside a small cabin/hut. To the right, around the corner, is an excellent opportunity to use a grenade on a cluster of three enemies up ahead. Do so for an easy cluster kill.
5. Move forward, up a small wooden ramp.
6. Achievement: Here, you will unlock the achievement "Saved Private Ryan."
7. Stay crouched, and pick off the few enemies across the water ahead in a grass hut\. You will reach a checkpoint here.
8. Head left, around the bend and up the ramp into the grass hut.
9. Once inside, lead left. Go inside the center of the hut, to the right. You'll find some rifle ammunition. When ready, head back out, to the left. There is a new clearing here. Use grenades liberally on the enemies behind sandbags in the yard. They are perfectly placed for grenade kills.
10. Crouch behind the low fence, just like the soldier in front of you has done. From here, you should be able to mop up the remaining enemies from the safety of your hidden position.
11. When read, head down into the clearing/yard. Scan the area for weapons/items. Follow Sullivan and Roebuck straight ahead down the wooded path, away from the village.
12. Checkpoint Reached.
13. Head straight ahead, following your comrades through the path. You'll pass a torch on your right.
14. Head up over a small hill, down into a valley leading to the river. There is extremely heavy enemy resistance here. Stay back, and use grenades to lower their numbers. You have the high ground, after all.
15. There is a rather threatening patch of them down and to the left. Focus on your fire on them first, staying crouched behind the rocks there.
16. When ready, move with your comrades down and to the left, past where you killed the group of enemies in the bunker.
17. You will move into the river. Follow your pals.
18. Checkpoint Reached
19. You will then be ambushed. In order to survive, fire immediately and consistently. Do not cease fire at the enemies. They are extremely close to you and need to be killed quickly if you are to survive. They are too close for grenades, so focus on simple carefully aimed gun fire. There is Thompson Machine Guns on the ground, retrieve it if need be.
20. Head straight down the path. Enemies will run down the path towards you. Head into the shelter to the left, taking cover there and firing from safety.
21. Alternate Strategy: Once the ambush begins, immediately take cover inside the small shelter to the left. From there, you can wage a more cautious offensive. It may take you longer, but is also safer.
22. Move ahead down the path slowly. There are little clusters of enemies perched at various points all along the the sides of the path. Stop as soon as one cluster comes into view, take them out with consistent gun fire, then move forward.
23. Once you make it past a few groups of them, you'll come to a few big rocks, where your comrades remain pinned down. Stay hidden behind the rocks and pick off the few enemies straight ahead.
24. Checkpoint Reached
25. Go up to the truck straight ahead, and press X. This will push the truck down the road ahead. Move forward after it does to the left, and immediately crouch behind a wooden bench. Out in the yard ahead, there are many enemies. Pick them off from the bench.
26. Be careful at this section, as you may be flanked from the left by enemies near the downward leading ramp/weapons supply storehouse. Head inside, and press X to plant a bomb on the missiles. After you've planted it, head back up on into the yard.
27. To the left, the enemies will have greatly increased since you planted the bomb. Proceed thusly: head out of the weapons store straight ahead. Follow your fellow soldiers straight ahead into the boat, which will trigger a cutscene and end the first mission.
28. Achievement Unlocked: Carlson's Raiders