Phone Room Rebalance

The phone room is a good idea, however since killing enemies to get phones requires skill, I believe that it shouldn’t be up to luck to pick the correct room that happens to have a dead drop in it. I propose adding a system in which there’s still multiple phone rooms, but some cost less then others to get into, and the dead drop room will always require the max number of phones per map. This will allow players to decide whether they want to risk fighting more enemies for all the phones for a reward, or prioritizing killing a lesser number to receive access to ammo, healing items, etc.