Le Banquet des Généraux

What is the reasoning behind this approach? Would it be usefull to add some more WS to the CP players deck (same as Allied?)

Don't really know. It is difficult indeed to get to the WS 40. I didn't tackle that issue in the variant because it wasn't anything shocking, really. But it would probably be a good idea, historically consistent, to give Bolshevik Revolution a 1 WS, to encourage the CP player to push forward on the Russian collapse track. And the little chance of allowing an earlier end to the game could act as a play-balance element, depriving the Allied from a 5th Blockade VP (The Friedensturm final requirement is harder to implement than the US army attack).

Again we agree on something - it is becoming a habit.

Bolshevik revolution seems to be a good choice - it was after all one of the major events in the collapse of the russian political sphere and ardently desired by the CP player (who let lenin slip through germany to lend a hand).

One of the Kaiserschlacht cards would also have been a good option - possible friedensturm as an additional incentive to go all the way? - again it was a major event on the political sphere as the german army believed to be moribund went over to the offensive stretching the allies to the limit.