ok nonononon
keep this slow and tentative. fast paced would be defeating the purpose of a gamemode which is already good but for reasons zapk might be straight unaware of
most servers in blockland are fast-paced and frantic. i know this because i deliberately cultivate this 90% of the time
this one isn't, but is still very good, so don't try to mess with the forgetin formula
could use a new map, more spread out, and buildings have multiple routes to the top instead of linear, campy staircases. also, weapon pickups with limited ammunition that despawn upon pickup would be useful as well if you move to a new map. a taser or some other item that stops or slows infected would be neat as well
slow down
if anything, give ranged weapons to exactly one person per round and have that guy drop the gun when he gets infected/killed, so everyone ends up trying to scramble and keep the gun in order to keep that single advantage
don't get too intricate with weapon choice in a game that isn't actually about the weapons