mechwarrior 5 has a really cool career mode
it's basically a sandbox game mode where you are free to roam the inner sphere as a mercenary outfit, trying to grow your reputation and resources so you can travel, get better mechs, and do harder and more complex contracts for all the factions, who's opinion of you changes based on which jobs you accept
i suuuper wanna try this in co-op sometime!
my last mercenary outfit got completely obliterated, and i wonder how it would go with friends