I think if you want an idea of the stuff you're likely in store of look at Call of Duty's newest DMZ mode which is a pvp pve extraction shooter. I've been playing it for months. You load into a giant map and do missions but there are other squads can kill you. It's like if you could pvp in patrol and missions all at once. kinda. It's very fun bur frustrating to lose your loot. DMZ's issues are why do it, cause there's no marketplace to use what you extract with. Like you extract with $50k but at the moment there's no out of game store or npcs to spend the money. it's just xp for a season pass. I'd expect marathon to have tons of stuff for sale. like eververse on crack.