Firing the Gatling weapon video - Tanks vs UFOs

It's a survival alien invasion where you should try to kick aliens as long as possible, actually, there's just some houses (which will be replaced), two weapons, which i just finished, and just one kind of alien, in a future, you would be able to pick up weapons from the floor, like bazookas, super laser weapons which you can use, probably enhance somehow at your will to kill those invaders.