you are a warrior how went to protect  space other warriors hate you and you hate other warriors such as barbarian, fighter, choose one of these warriors you also hate such as monk's paladins rogues rangers blood hunters. this means you have a hard time working with them and you may battle them.                                                                                                              

Skill Proficiencies: taking this backround you can choose 3, Athletics, Perception, Sleight of Hand, History, Persuasion and you know how to use vehicles(flying and space)

Tool Proficiencies:  you know how to use Thieves' Tools and Navigator's Tools for space ships!

Languages:  you know common and you can choose 2 languages and 1 rare language you can also say simple words to aliens. 

Equipment:  one long sword and one crossbow and one grappling hook talk to your dm If you can have a grenade launcher or a Flame Tongue Longsword