Bored? Save this to a config file and try this in a local server/single player campaign. Then run "exec file_name.cfg" and good luck.
sv_cheats 1
z_common_limit 100
z_mega_mob_size 120
director_force_panic_event
director_panic_forever 1
sv_cheats 1
z_common_limit 100
z_mega_mob_size 120
director_force_panic_event
director_panic_forever 1