At the start of the mission you'll actually have to hit the B button to get going. Once you are out of the plane, you can just watch as the world flies by. In fact, that's all you can do so enjoy. The parachute will open on its own. Once you've landed, head down the hill with your squad and once you stop, look for a little bump that you can climb up on. It's small so it's not a big deal if you can't find it but either way, go prone and look down at the patrol below.
Your squad won't fire until you do. Because you only have an SMG, I highly recommend that you shoot a clip at a time. This flies in the face of the way you've been shooting the entire game but the gun is rather inaccurate and doesn't pack a whole lot of power so it's more important that you ensure that your enemies are dead. Some of the enemies will retreat to the road behind them and use the trucks for cover. Move to the far right side and come around the corner so you can see them as slowly as you can. If you come across an Assault Rifle on the ground, grab it and use that because this range is far better suited to it. Once you've cleared the enemies by the trucks, head back to your squad (where the patrol originally was) and open the container to get a better weapon.
Figure out which weapons you want to bring with you and then head for the trucks. Get in and listen (read) the chatter for a little while. Eventually you will get to a point where you can clearly go no further and you will be prompted to shoot someone so turn left and wait for the quicktime event. Wait for the door to be hacked and go into the next room. Find the button for the exterior door and make your way up the stairs and outside.
Make your way across the small bridge using the trucks for cover. Watch for an RPG in the rocks to the right. At the end of the bridge, take out the enemies above the road in the rocks before proceeding. Follow your squad to the top of the road and take cover behind a wall and some plants. Clear the enemies above you. Cross the field and move to the next wall and then do the same again to get to the next wall. Cross the field and get into the front door of the villa. Follow the waypoint and go through the door. Be ready for a QTE.
Cross through the garage and climb up the stairs to the roof. From the roof, carefully pick off the enemies in the distance. Take your time and use the potted plants for cover here. Cross the field to where those enemies were and to the building in the back. Watch for the Snipers on the roof here because one good shot from them can put you down and set you back to the beginning of the villa.
Move up to the front door of the next building and shoot through the windows into the living area. Proceed around the left side to flank them and move into the building. Be careful because there is plenty of space for enemies to be hiding here. Make your way to the back of the building and up the stairs. Move through the bed rooms and out to the balcony and into the next room.
You'll make your way back into the building and have an elevated position to take out the enemies in the room below. Head into the kitchen area beyond and use the table there for cover and try to take down the enemies in the living area. Climb the stairs behind where your enemies were and make your way up to the bar area. There will be a couple of enemies behind the bar. Take them out and then breach the door on the side of the room.
There is plenty of cover in this room. Make use of it. Go up the left side of the room and let your squad clear the enemies. Head through the side hallway and prepare to breach the door. Instead, though, head up the stairs and into the room from above. Be prepared for an enemy coming out of a door. When you get into the big room, go prone here and try and take down the enemies below. Make sure you watch from enemies coming at you from the right. If you can be reasonably sure that the right side is clear, it provides much better cover.
Regroup with your squad downstairs and prepare to breach. You will enter an underground section with poor lighting. Grab your choice of weapons. An assault rifle would be a good choice if you don't have one any longer. Make your way through the halls and eventually you will be attacked by a bunch of flash lights. Kill them as they come at you, making use of pillars for cover. Enter the vault in the back and then go back out. Breach the door. Slowly make your way through the halls to the waypoint.
You'll enter a shooting range. At the end climb up the stairs and turn left. Take out the enemy in the glass room. Kill the enemy in the next hallway and meet up with your squad. Go down the hall and up the stairs to the area that's on fire. You'll meet some resistance as you make your escape. Once you are outside, run for the chopper. Climb into the chopper and complete the QTEs.
You're suddenly back outside. Make your way back into the villa and have a talk. Shoot the man coming down the stairs. Yes, shoot.
