(I searched this and there was no brickforce so i can post it)
Brickforce is like a minecraft shooter where you can join peoples games, play with them, and there is even a mode where you can just build anything then save your level and you can play it in the normal mode!
There is a shop with all the guns and clothes you will need.
Sorry i dont have any pictures. Link to game
http://www.brick-force.com/en/game/about