Damn, already 3x fanboys come in to attack me on a personal level just because I mentioned that Partisans have the same ability as spawning from ambient buildings.
Yeah, there's definitely a conspiracy against you. Still you've mentioned irregulars and you were incorrect.
Yes, Partisans can spawn, even more, Soviets even can spawn dedicated AT partisan units. However unless you get PPSH squad, you most likely won't kill a weapon team so fast.
Second problem is that Soviet unit leaves the building right at the moment you click to spawn. And pretty often it's opposite to direction you need.
Third problem - Partisans can't even beat mundane pioneer squad.
That's without even regarding their survivability.
The only other thing I said was that Fallschirmjaeger don't have great survivability without vet. Come at me moar rabid fanboys, COME AT ME BRUUUUHS!
Their survivability is fine, since only Shocks can reliably take on them, all other possible soviet units start losing models when they try to get in range (cons/penals)
or they are set up in different direction (weapon teams)
or they are fragile for combat against Falls (sniper unit next to the building).
Not even mentioning core faction design that can hold on it's own while being complemented by Falls use, not hindered