World war 2 and everything has broken lose. Your camp is under attack and you are the only one left to defend the camp. You have pick a good hiding spot, so you do not need to worry about the enemy finding where you are, but the problem is that they set their eyes on the fort and they are going to destroy it if you are not going to interfere. Kill all the enemies as they march close to the fort. Each kill would earn you money, but you need to make sure that the fort stands, so try to repair it as much as possible. You can buy new weapons as you make some progress.