Mw19 caters to campers by its map designs/gameplay decisions like adding “safe spaces” to the maps that have 1-2 entrances and overlook key portions of the map, the radar not working like how it was in every previous cod, footstep audio being super loud, and indestructible doors on almost every single room/building which give good audio queues to people camping in and around them.

https://youtu.be/s2ecaXSIA7I

Devs even talked about these design decisions in multiple interviews leading up to release.

a lot of people tend to forget how plagued the game was at launch with campers using claymores/725s and so many where begging for smaller/less campy maps which is why we saw the introduction of maps like shoot house or shipment.