If you go back to the beginning of every COD, people historically complain about campers. Happens every time because people haven't learned the maps.
I believe the era of multi-lane style maps is dead and gone. We'll probably get a few of the popular ones from the past in DLC but map design now is done to simulate the reality of urban warfare and force engagements. In my opinion, it's a lot easier to flank your enemies in this COD because most people are playing with old strategies.
I thought the concept of Ground War was chaos? When you spawn on a squad leader vs spawning on an objective, you take the risk of spawning into a potential gun fight versus spawning into a room someone may or may not be trying to push to cap. GW feels like more of a Battle Royale without a lot of the BR mechanics.