what would be the fastest way to play 4-5 player terraforming mars using iterations of the standard game and corporate era?
would +1 all resources and all corporate cards make the game significantly faster, without diluting mechanics or making it too easy?
Playing without the Corporate Era cards is your best bet, as all players then start at 1 production of every resource, and the card deck without the Corporate Era cards is a little more focused on the things that drive the game to its conclusion.
It seems like playing with the beginner corporations might also shave off a little time, as you simply start the game with 10 cards and 42 megacredits, rather than having to do any drafting at the outset. So, you skip the time spent having to decide on cards at the beginning, and everyone also starts with a mitt full of cards and a good amount of money.