As the title said,
Would it be possible to have everyone sign a petition to and send it to Square Enix to show how many people would love an update on the source code for SupCom??
Maybe if they see the amount of people playing, they might find profit in it and cure the lag in the game?
Everyone contributing to the FAF client definitely deserves A LOT of recognition on polishing this game to be enjoyable. Just unfortunate we can't do anything about the source code
Not really a viable thing, significant effort has already been made trying to unearth the source code. Can probably read about some of that and previous similar thoughts from the old and current forums.