I say this as someone who likes sniping and quickscoping, but these ground war and invasion maps can be boring sniper fests.
This guy brought up a good point, it is still a very camp-heavy game. Despite them saying it's well-balanced, there are too many elements that reward camping heavy to say it's equal parts rushing, flanking an camping. For example, the attachments slow you down (to make rushing more difficult), loud footsteps, dead silence not a perk, very random spawns, etc. all of those favor campers.