I play face-to-face with all 6 NAs turned on for all 5 nations. In the 15 games I have played in this way, I have seen Salvage taken advantage of exactly twice. There may have been some fights in there where it was forgotten, but STILL. That’s a pretty poor return on an “advantage” if you ask me.
Russian Winter merely gets you a round of breathing room. Useful when it’s coming down to the wire and Moscow is threatened. The Japanese player tends to forget that this NA has been activated when his turn rolls around, and might make miscalculations in the east to reflect that.
Railway is consistently useful in every game.
Nonaggression Treaty can be a blessing or a curse. Sometimes you’re afraid to take easy Manchurian pickings just because you don’t want to lose your 4 free men. Sometimes the threat of those free men can keep Japan off your doorstep for a good long while. It all depends on what you can force her priorities to be.
Mobile Industry is useful for pulling the Caucasus IC back when that territory is threatened. If Germany can build 4 units in Caucasus, you’re on the verge of screwed. Retreating the complex means that you don’t HAVE to retake Caucasus next round (a heavy strafe is often adequate to set up for the following round retake).
Lend-lease. I like it, but usually Allied gear thus obtained is destroyed before it has the chance to actually do anything. (arriving typically in war-torn territories as they so often do). And often I’d rather have a US or UK unit messing around in the area rather than just another soviet soldier.
~Josh