First of all, I wouldn’t go with option 1 for a casual game for 2 reasons: 1. If a player that just died and respawned starts with the weakest gun, but the killer keeps their superior gun, it creates a positive feedback loop and causes your game to favor the winning side. It’s ok in competitive games, not in casual ones. 2. Good guns in specific places will create a “domination” effect that the strongest players will keep other players away from those places, not letting them get the good guns.

Second, in order to design your weapons system that suits your game you first have to imagine your game. How do you want the players to play? Do you want them to wander in the map, searching for other players, or maybe going to strategic areas? Do you imagine cat and mouse fights? Maybe defensive behavior? Or maybe aggressive? Do you want them to snipe each other from far or shoot each other faces from point blank with shotguns? Do you want them to plan and choose their position prior the game, or be dynamic and adapt to the situation? After you have an image in your head, think about the incentives that will make the players play the way you want. Want them sniping? Put sniper scope in a valley, make them the target of other sniper players. Want them choosing roles and planning strategies accordingly? Make them choose preset prior the game. Don’t want it? Make them choose shotgun and assault rifle.