Left 4 Dead - 250 Infected Mega Mob

Lately I've been feeling that the demo for Left 4 Dead is becoming much too easy. So I thought, what could I do to make it more difficult? Why not remove the teammates, force constant panic events with no cool down, and quintuple the maximum infected count? This was the result, and it turned out I had to use god mode anyway. Perhaps it's obvious why. Be sure to check the video response for my followup video, featuring even more infected of course: http://www.youtube.com/watch?v=dD_q3SEdDrg&fmt=18 These are the commands I used: z_common_limit 250 z_mega_mob_size 250 z_mob_spawn_max_size 250 z_mob_spawn_min_size 250 z_mob_spawn_max_interval_easy 1 z_mob_spawn_max_interval_expert 1 z_mob_spawn_max_interval_hard 1 z_mob_spawn_max_interval_normal 1 z_mob_spawn_min_interval_easy 1 z_mob_spawn_min_interval_expert 1 z_mob_spawn_min_interval_hard 1 z_mob_spawn_min_interval_normal 1 director_panic_forever 1 director_force_panic_event