I'm currently making a roguelite FPS game, and I have a decision that I want you guys to vote on. This is specifically about buying upgrades in the game.

 1.I could make a skill tree, which could be nice, and it would be a simple way to make the upgrade system

2.I could make something present you with random upgrades, which could be frustrating for some people

3.You could get random upgrades throughout the journey, and when you die, you keep your upgrades

Please comment your vote.