What's the name of the group of four?

1, where is the enemy, where is my place, where is my teammate, and where is here.

2. No head, no armor, no shoes and a box.

3, wading through mountains and licking bags, sending heads all the way, chasing airdrops, standing in the same place looking for guns.

I eat chicken wings, I eat chicken legs, I eat chicken feet, and I eat chicken buttocks.

Don't ask who I am, I don't know who I am, ask who I really am, and who can tell me who I am.