Overall the ability
of getting gear is quite simple, play matches and you have a chance
of getting a
random piece for that hero you are currently playing as and you can get
steel which is used to buy scavenger packs which range in price but the basic costs around 300
steel, from doing AI duel's you get about 20 per match so its grinding if you don't want to play online and you can get about 5000
steel just from finishing the story on hard mode (Which isn't that hard to be honest)