But basically your 7 characters ready to kill each other. The basic story is that the world is shattered from nuclear bombings, and the survivors are fighting for left over scraps of what is left of their humble world. Well you have a lot to choose from and you can pick up a few when see them around the map. Your weapons make realistic sound effects and have realistic actions. Shotguns accuracy is low from a distance, but deadly up close.
Most weapons do have a secondary attack, so just check each weapon and see what else it can do.
What is also nice is the actions of each weapons, such as reloading and how they hold the weapons, the MP5k is held side ways.