I think maybe the answer lies in research on older/newer class specific games.
Pretty much with every thing in life its the history of the old with a dash of new spice embeded in. I mean WF was original but it is a class specific game, soo maybe a team should be established to review class specific games in an effort to bring to light were they failed and were they excelled.
Maybe instead of grapple the sniper could have a "lay down" feature specific to his class.
Just throwing mud at the wall and seeing what sticks