The current deathmatch is just poorly executed. The time & kill limit enforces and rewards camping and playing passive to get more kills. This just ruins the training aspect of deathmatch, we should instead have servers where it's an unlimited time and kill limit in which you can leave and join at any time. In regular DM people end up leaving and then the spawn logic becomes extremely messed up. Making the kill limit and time limit unlimited would remove the camping issue mostly if not entirely.