Please choose the correct ending to complete the given sentence: Paintball: . a group of men wearing military fatigues and armed with paintball guns

Ending1: are in the living room playing pool. Ending2: prepare to enter a building. Ending3: war in a vast open field behind an attacking helicopter circling overhead, they drop to the ground, their bare feet covered in blood, and begin fighting one another. Ending4: walk around a large group of people on black uniforms and play a series of different games.

Answer format: ending1/ending2/ending3/ending4