Need some advice

I’m looking to buy a spring piston gun for some pest control/small game hunting. I’m debating between the game maxxim swarm or one of the gamo whisperer models like the fusion mach1 most concerned with getting something quiet and accurate, shooting 30 yards max most likely. However open to other suggestions. I’ve had a gamo big cat 1250 before and that was a tad loud. 
 
There are a couple springers that actually make use of a sound moderator. The HW50s Hunter may fit your bill, and it comes with a moderator already installed. I own a Walther LGV that comes threaded for a moderator. I installed a Donny FL and it does make it much quieter. There may be others out there not sure. 

I also own a Gamo springer that I use to hold my workshop door open. Does a good job and it’s really quiet. It actually was a really nice rifle, but it really did not last. I can’t get it to hit straight no matter what I do these days.