@Zulkiers The r-301 single fire is still really good. I would argue you could fire it in quicker succession and deal as much if not more damage as anvil rounds.
The only way I could see every weapon having a hop up available is if they were already built in like some game modes. But that would require a ton more balancing if they were all in at once.
I would be interested to see difference weapons with more unique perks that didn't require hop ups. Like some of the weapons I came up with in my season concepts.
The scatter shot: a shotgun with ricocheting rounds.
The RAD shot- a radiation AOE grenade launcher.
The shredder- an energy burst pistol
Or the M.S.G. (Map specific guns) I made with perks that reflect the map their found on. Such as:
dealing more damage the longer its fired.
Dealing damage directly to enemy health but using your own med kits to do
Shooting in the air to reveal
All this and more would provide new and unique gameplay and new ways to strategize and take risks.