I read on the Interweb... I think it was the "Wikipedia"... in fact I'll quote from it...
"The game world can transform during scripted events and as the result of player actions, altering locations and creating new paths"
Is this actually a feature of this game or is RSTAR7824 condemned to repeat the same actions again and again?
A co-op mode is unlikely, such things need to be added DURING development in order for the necessary code to be there and available.
You can't just slap the code on post release.