It's free son, if u wanna get started just play until u get 50 kill streak then go rainforest equip wrencher set spawn speed for enemies there 0,clear out the enemies,and farm giant by running around and throwing ur wrench (m1 ur wrench projectile to parry it and do extra damage,and don't get close to giant dummy) repeat this until u have 5000 kills ay which point u can restart the game and check out everything ele or continue farming giant and searching around his body for a comb after which you'll get my king locas