What is the best gun in BRM5 Operation Phoenix?

Game: Roblox Blackhawk Rescue Mission 5 BRM5
I doubt I'll ever play ranked again, that was a fever dream to play.
I suppose it's my fault for not playing with anybody else on my team though.
BRM5 Ranked Gameplay goes crazy doesn't it, the P90 held it's own very well.
I feel like the P90 has been nerfed so many times over the lifespan of BRM5 but it always finds a way to squirm its way back to the top.
I think there are a lot of other really good guns currently but the P90 might be the best in my eyes currently. I've given a majority of the guns a decent chunk of playtime and the P90 is definitely an outlier.
Let me know though what you all think is the best gun in BRM5 currently!