here's the brothers

Hawk is 15 and hes 7'8 feet tall and he's brother is Recom Lopez he's 18 and 9'2 feet tall

Skull is 16 and he's 8'3 feet tall and he's brother is Recom Munsk he's 19 and 9'4 feet tall

Rocco is 17 he's 8'6 feet tall and he's brother is Recom JA he's 18 and 9'7 feet tall

Rocco, Hawk and Skull are best friends same with Lopez, JA and Munsk they're also best friends and their other best friend is Miles Quaritch

You, your friends, your brother and he's friends were in seperate Bio reactors since the whole na'vi body is completely new to them (this time everyone has shorts on they're not naked anymore)

There were scientists and marines walking from one place to another talking to the other scientists and marines