So i was reading on the steam forums and i happen to find this mode and it was pretty freaking awesome.
Play on expert and type in these commands:
] z_common_limit 60
] z_hunter_limit 3
] z_exploding_limit 3
] z_gas_health 500
] z_hunter_health 500
] z_exploding_health 100
] z_health 100
] z_hear_gunfire_range 600
] z_speed 500
] z_mob_spawn_max_interval_expert 90
] z_mob_spawn_min_interval_expert 45
] director_tank_min_interval 175
] director_tank_max_interval 250
] pain_pills_decay_rate 0.54
] pain_pills_health_value 25
] first_aid_heal_percent 0.5
] first_aid_kit_use_duration 10
] z_gas_limit 3
] z_gas_speed 420
] z_exploding_speed 350
] z_hunter_speed 600
] survivor_drag_speed_multiplier 2
] z_tank_speed 420
] z_witch_speed 600
] z_witch_speed_inured 400
] z_gun_damage 5
] z_gun_force 150
] crosshair 0
formatted into:
z_common_limit 60;z_hunter_limit 3;z_exploding_limit 3;z_gas_health 500;z_health 100;z_hear_gunfire_range 600;z_speed 500;z_mob_spawn_max_interval_expert 90;z_mob_spawn_min_interval_expert 45;director_tank_min_interval 175
director_tank_max_interval 250;pain_pills_decay_rate 0.54;pain_pills_health_value 25;first_aid_heal_percent 0.5;first_aid_kit_use_duration 10;z_gas_limit 3;z_gas_speed 420;z_exploding_speed 350;z_hunter_speed 600;survivor_drag_speed_multiplier 2;z_tank_speed 420
z_witch_speed 600;z_witch_speed_inured 400;z_gun_damage 5;z_gun_force 150;crosshair 0
I only got as far as no mercy 3 sewers and left the game because it was to hard.

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