Gun Modification
- This area allows you to attach modifications to your guns.
Mod sockets are shown under the gun image and shows what modifications that
gun supports and what modifications are currently installed. 
- This area shows all modifiable guns in your inventory. Select a gun to modify by double-clicking it.
- This shop sells four types of modifications; sights, silencers, flashlights, and skins.
- This area shows all modifications in your inventory. You can hold a maximum of six
different modifications. Modifications of the same kind stack in your inventory.
