I guessing this game is using the Campaign system like HOS so what im thinking for a Dynamic and Replayable Campaign is that at the first battles you participate in your a Rifleman in a Squad and depending on your performances you will go up the Chain of Command (Start at Private in Guadicanal and end up LT at Iwo Jima) and also it would be nice if the Player had some interaction with the AI's on your Team.
It would also be nice if there was a system where if your squadmates die in one mission, they wont return the next mission or a Resupply Concept where your Team will get less respawns if they took a beating the last Mission and the Commander cant resupply your Divison.
My final Idea is when you start you get to choice which divison your in and that will effect where you will fight battles (for example, if you choice the 2nd Marine Divison, you will fight in Guadicanal, but depending on how many casualities you get, the AI "Commander" may or may not have you land Saipan but may also save your divison for Iwo Jima, Okinawa, Etc.)
It would also be nice if there was a system where if your squadmates die in one mission, they wont return the next mission or a Resupply Concept where your Team will get less respawns if they took a beating the last Mission and the Commander cant resupply your Divison.
My final Idea is when you start you get to choice which divison your in and that will effect where you will fight battles (for example, if you choice the 2nd Marine Divison, you will fight in Guadicanal, but depending on how many casualities you get, the AI "Commander" may or may not have you land Saipan but may also save your divison for Iwo Jima, Okinawa, Etc.)