TLDR 3v1 would be more balanced, with the current situation on stealth.
So having played both sides a fair bit, it occurred to me that the Fireteam with “Muddy Up” and/or “Ice Cold” has much better stealth than the Predator.
As a Sniper I can usually spot and hit a Pred way before he finds me. As a Pred knowing this I usually hang back and stay very still until I know whats going on. But again I know the second I move I am going to get spotted. The fireteam can easily hear your location and it makes the decoy almost necessary.
TREX Pred is too loud. Even crouched I can hear him a mile off, as a team we even resort to letting him get away so we can complete the mission for more points and kill him late game or endgame.
Honestly, playing both sides I feel in more danger as the Predator. He is more like prey.
3v1 would make more sense until the Predator can be silent and stealthy. Right now the Predator may as well be just shown on the map like the AI; with all the noise it makes.