XP Acquisition
This is sort of in reference to the Planter nerf I'm suggesting, as with a planter nerf players will want another way to make XP, some of the ways I suggest are listed below with the reasons for each.
Crafting XP - Players should get XP for items crafted based on rarity, more specifically for explosives they craft, 5 for satchel, 10 for a rocket, 20 for a C4 Etc, these numbers are just for reference and can be changed to whatever best works for the server.
Key Card Usage - Players should be awarded XP fo using keycards. this would encourage more people to run monuments, even if they are low teir, an example for this would be 250 for green, 500 for blue, and 1000 for red, again subject to change to best suit the server.
Driving and Flying - to encourage exploration, players could be awarded XP while mounted in a vehicle over time, like 15 per min in a vehicle, this is easily achievable by playing the game anyway and would make people want to go around more as when they are unsure of what to do, they can explore and be rewarded, this should also include a way of detecting if a player hasn't moved for 15mins or more and stop giving XP if they are AFK to stop it being abusable.