You will have to spend quite a lot of time here, however this is an easy mission. The most important thing will be to use all available objects for cover. You will also have to deal with several snipers, however they will be very easy to find. The final part of this mission is going to be slightly more complicated. You will have to secure several large rooms. They are being occupied by well equipped soldiers.
We'll start off inside a small room (#1). There aren't any enemy soldiers here, so you may proceed to the nearest door. You won't have to use your camera here. Open the door and order your men to hide behind a nearest cover (#2). This area is crawling with enemy troops and you will have to start killing them.
I'd strongly recommend that you take a closer look at your tactical map. Otherwise you would have to spend a lot of time, searching for enemy soldiers. Try and take out all visible snipers (#1). There's going to be at least two of them. Once you've secured this part of the construction, move with the whole team to your left (#2). You should be able to take out several other hostiles from here.
You will have to focus most of your efforts on securing the whole area that's located in front of you. Thankfully, you will be able to hide behind a good cover, so it shouldn't be too hard. Once you've completed this task, order your men to move forward (#1). Be careful. More enemy soldiers may reveal their positions. You should be able to take them out from here. Once this is done, rejoin with the rest of your squad and proceed to the right corridor (#2).
You will encounter new soldiers just around the corner (#1). One of them will be hiding behind a barrel, so it would be wise to send the rest of the team to handle this problem. There's at least one more terrorist here, but your team should be able to hunt him down. Once you've secured this area, proceed to a small ladder (#2). Use it to reach an upper floor. I guess I don't have to remind you about ordering your men to get here.
Keep heading towards your current destination. The rest of the team should be following your lead. More enemy soldiers are hiding on your left (#1). You will have to take care of this small problem. Make sure that you're using cover here. Take out a single sniper (#2). You won't have any problems finding him. Just make sure that he's gone.
Keep heading towards your current destination (#1). Make sure that you're choosing larger objects for cover, so you won't have to risk lives of your squad members. There's a single terrorist on your left. I would recommend using your tactical map here (#2), so you'll be able to locate him much faster.
Before you decide to proceed to a lower level, you will have to take out all remaining hostiles (#1). There's not too many of them here. Remember that you won't have to be in a lot of hurry. Head on to the lower platform. Start moving towards a designated area (#2). This will allow you to enter a new section of this map.
There's a small passageway ahead of you (#1). Thankfully, there's nothing for you to worry about, so you don't have to make any unnecessary stops here. You should be able to reach a new area very soon. Order your men to use rappel hooks (#2). Once they've reached the lower platform, you will have to join them. Make sure that they're following your lead.
You are going to be attacked by a few terrorists in just a few seconds. I would recommend staying near the ropes. Additionally, activate your tactical map, so you won't have to waste more time finding these thugs (#1). Once they're gone, proceed to a small room. You will find a second member of your team (#2). Sadly, he's dying and there's nothing you can do about it. As a result, you will only have to listen to what he has to say.
Proceed to the next section of the map. I would recommend ordering your squad members to hide behind a nearest cover (#1). It's going to be a little risky, however you have no other choice, mostly because you're leaving a small tunnel. Once you've dealt with the first group of enemy soldiers, start using the scope (#2). You will also have to make sure that none of the terrorists gets closer to your teammates.
Try making a few steps forward. Hide behind the wall and start using your scope. There are also some terrorists on the upper level. The easiest way to get rid of them would be to use a couple of grenades (#1). Secure this floor. After that, order your men to use a nearby ladder (#2). Once they've reached their destination, you will have to join them.
Be careful. You are going to be attacked in a few seconds. Order your teammates to hide near a balustrade (#1). Head on to that location. I would recommend using the tactical map. This will allow you to find exact positions of enemy troops. As you've probably noticed, there's a small passageway on your left (#2). You will have to secure it, so no one surprises your team from the left flank.
Once you've secured this area, start moving towards this small path. It's the only way to reach your current destination. You should be able to reach the second part of the balcony. Thankfully, there are a lot of obstacles here, so you will be able to use them for cover (#1). Choose the left platform and enter a small room (it's not guarded by anyone). You will come across a checkpoint (#2). Reload your weapon and make sure that your colleagues are following you.
You are getting close to a very large square. Head on to a small door. Use the camera. I would recommend tagging two terrorists. One of them will be standing on your right (#1). The second guard is patrolling this area, so you will have to wait for him to get here. Proceed with the assault. You should be helping your teammates during these fights (#2).
Once you've killed 4-5 terrorists GO BACK to the previous corridor (#1). It's very important. Otherwise your team would be attacked from three different directions. Try taking out other terrorists from here (#2). Some of them will actually get closer to the door, so you will have to be very careful.
Once you've taken out most of the enemy soldiers, order your men to proceed with the assault once again. Focus most of your attention on your right and left side (#1). Thanks to that, you will only have to watch out for single units. These guys will appear in front of you. Start moving towards unexplored areas of the map (#2).
I would recommend getting closer to a smaller passageway. It leads to the second large area of the map. You should be able to take out at least two terrorists from here (#1). Just as before, try to maintain a large distance. It would also be wise to surprise some of the enemy soldiers from the left flank (#2), however you would have to hide behind a large truck.
Head to a new corridor. This passageway leads to a new room of the casino (#1). Thankfully, you shouldn't encounter any hostiles here. A small group is hiding around the corner. Hide behind the wall and start shooting at them (#2). Make sure that you're using your tactical map.
One of the enemy soldiers will be standing near a machine gun post (#1). I would recommend taking him out as soon as possible. You will have to use a scope here. Once you've secured the entrance, order your men to enter the room. More bad guys will appear near the stairs (#2). Thankfully, there's not going to be too many of them.
Keep moving forward. Make sure that you're using some of the nearby slot machines for much needed cover. You should be able to reach the stairs (#1). Head on to the upper level. After that, you will have to choose a nearby corridor (#2). Once you've entered it, this part of the chapter will come to an end.