以下介绍几种cfg，有些指令上面没有介绍的话查字典应该就可以知道:
---------------------------------------专打Bosses版-----------------------------------------------
xtr.cfg
sv_cheats "1"
skill "3" --->难度
sv_infinite_ammo "1"
director_panic_forever "0"
director_build_up_min_interval "0"
director_special_battlefield_respawn_interval "0"
director_special_initial_spawn_delay_min "0"
director_special_initial_spawn_delay_max "0"
director_special_initial_spawn_delay_max_extra "0"
director_special_respawn_interval "0"
director_pain_pill_density "20"
director_molotov_density "20"
director_pipe_bomb_density "20"
director_pistol_density "20"
director_force_witch "2"
director_force_tank "3"
director_force_background "0"
survivor_revive_duration "1"
survivor_revive_health "100"
survivor_no_pounce_or_hang "1"
first_aid_kit_use_duration "1"
z_must_wander "1"
-----------------------------------------------------------
---------------------------------------------------难版---------------------------------------
extremism.cfg
sv_cheats "1"
skill "2"
sv_infinite_ammo "1"
give "first_aid_kit"
give "pain_pills"
give "pumpshotgun"
give "pistol"
give "molotov"
give "first_aid_kit"
give "pain_pills"
give "pumpshotgun"
give "pistol"
give "molotov"
give "first_aid_kit"
give "pain_pills"
give "pumpshotgun"
give "pistol"
give "molotov"
give "first_aid_kit"
give "pain_pills"
give "pumpshotgun"
give "pistol"
give "molotov"
z_must_wander "1"
director_pain_pill_density "0"
director_molotov_density "0"
director_pipe_bomb_density "0"
director_pistol_density "0" 这四个是止痛药，汽油弹，声音但，手枪，出现的密度。
0就事你在地图找不到。
director_panic_forever "1"
director_build_up_min_interval "0"
director_special_battlefield_respawn_interval "0"
director_special_initial_spawn_delay_min "0"
director_special_initial_spawn_delay_max "0"
director_special_initial_spawn_delay_max_extra "0"
director_special_respawn_interval "0"
director_force_witch "2"
director_force_tank "3"
director_force_background "0"
survivor_revive_duration "1"
survivor_revive_health "100"
survivor_no_pounce_or_hang "0"
first_aid_kit_use_duration "1"
nb_rush
director_force_panic_event
