Difficulty levels change the amount and skills of the enemies.
Your task surely isn't easy - after breaching the wall, you must quickly get through the bathhouse and into the hole in the floor.
The time limit is present only on Veteran - 3:00 minutes. You can complete this mission in two ways. Before you breach the wall, you can choose your weapons from the pile on the left.
The first, traditional way - slowly moving forward and eliminating nearly all the enemies. In this case the weapons choice is entirely up to you. Once you're ready, plant the charge at the wall #1 and after a while you'll be in the bathhouse #2. Eliminate as much enemies as you can during the bullet time.
The whole thing is divided into three parts. In the first and second once you deal with normal soldiers. Additionally you will be attacked from above; there are lots of enemies on the balconies on both sides. You'll easily notice them because of the laser sights #1. In the end you will have to face soldiers with shields #2. The best way to get rid of them is use grenades and try not to fight them directly. You can also use flash grenades, thank to which you will kill them easily.
Actually, you can finish this mission in less than 15 seconds. Choose the G18 pistol and Striker as your weapons. As soon as you breach the wall, start shooting the enemies and hold the forward button - you will eliminate almost every enemy in the first part of the bathhouse. After using up the ammo, change your weapon. Once you're in the second part, throw a flash grenade above the lockers in the middle. This way you will blind the enemies at the end - you will have a clear path to the hole. Additionally you can use the Striker, its power is enough to deal with several enemies standing close to each other. Below you will find a movie showing this method in action on Veteran (naturally you can complete this mission even faster!).