[BBG_Theory]

I have not actually tried this yet, but I noticed some mistakes without even trying it on a server
plus there was multiple typos like extra " and missing " (like in the killing_spree)
for example:
"3" "materials\models\player\hvyweapon\hvyweapon_ red" those 2 files do not even exist

plus don't mention
"4" "materials\models\player\hvyweapon\cheavy_mou th"
"5" "materials\models\player\hvyweapon\cheavy_nor mal"
in the "mat download" section since you don't have both .vmt and .vtf files
call for the unique file in the download section

like this

PHP Code:

"character"
{
 "name"     "Gangnam heavy"
 "class"     "6"  
 "model"     "models\player\casual_heavy.mdl"
 "ragedist"    "600.0"
 "maxspeed"    "340.0"
 "ragedamage"   "5100"       
 "sound_block_vo"  "1"
 
 "description_en" "Gangnam heavy:\Gangnam style~'\nSuper Jump: alt-fire, look up and stand up.\nWeigh-down: in midair, look down and crouch.\nRage : taunt when the Rage Meter is full.\nRage Info: Aim at an enemy, press M1 to lunge instantly at him."
 
 "weapon1"
 {
  "name"    "tf_weapon_fists"
  "index"    "5"
  "show"    "1"
  "attributes"  "273 ; 1"
 } 
 
 "ability1"
 {
  "name" "charge_weightdown"
  "arg0" "2"
  "plugin_name" "default_abilities"
 }
 "ability2"
 {
  "name" "charge_bravejump"
  "arg0" "1"
  "arg1" "1.5"
  "arg2" "7"
  "plugin_name" "default_abilities"
 }
 "ability3"
 {
  "name" "rage_stun"
  "arg1" "3.5"
  "plugin_name" "default_abilities"
 }
 "ability4"
 {
  "name" "rage_preventtaunt"
  "plugin_name" "default_abilities"
 }
 "ability5"
 {
  "name" "rage_stunsg"
  "arg1" "10.0"
  "plugin_name" "default_abilities"
 }
 "ability6"
 {
  "name" "rage_matrix_attack"
  "arg0" "0"
  "arg1" "4.5" // duration in normal timescale (varies across servers)
  "arg2" "0.4" // game speed modifier
  "arg3" "-1"
  "plugin_name" "ff2_1st_set_abilities"
 }
 
 "sound_begin"
 {
  "1" "freak_fortress_2\gangnam\intro.wav"
 } 
 "sound_kspree"
 {
  "1" "freak_fortress_2\gangnam\kspree.wav"
  "2" "freak_fortress_2\gangnam\kspree2.wav"
 }
 "sound_win"
 {
  "1" "freak_fortress_2\gangnam\win.wav"
 }
 "sound_death"
 {
  "1" "freak_fortress_2\gangnam\fail.wav"
 }
 "sound_ability"
 {
  "1"  "freak_fortress_2\gangnam\rage.wav"
  "slot1" "0"
  "2"  "freak_fortress_2\gangnam\rage2.wav"
  "slot2" "0"
  "3"  "freak_fortress_2\gangnam\rage.wav"
  "slot3" "0"
  "4"  "freak_fortress_2\gangnam\rage2.wav"
  "slot4" "0"
  "5"  "freak_fortress_2\gangnam\style.wav"
  "slot5" "1"
 }
 "sound_lastman"
 {
  "1"  "freak_fortress_2\gangnam\kspree2.wav"  
 }
 
 "mod_download"
 {
  "1" "models\player\casual_heavy"
 }
 "mat_download"
 {
  "1" "materials\models\player\hvyweapon\cheavy_blue"
  "2" "materials\models\player\hvyweapon\cheavy_blue_invun"
 }
 
 "download"
 {  
  "1" "sound\freak_fortress_2\gangnam\fail.wav"
  "2" "sound\freak_fortress_2\gangnam\intro.wav"
  "3" "sound\freak_fortress_2\gangnam\kspree2.wav"  
  "4" "sound\freak_fortress_2\gangnam\kspree.wav"
  "5" "sound\freak_fortress_2\gangnam\rage2.wav"
  "6" "sound\freak_fortress_2\gangnam\rage.wav"
  "7" "sound\freak_fortress_2\gangnam\style.wav"  
  "8" "sound\freak_fortress_2\gangnam\win.wav"
  "9" "models\player\casual_heavy.phy"
  "10" "materials\models\player\hvyweapon\cheavy_mouth.vmt"
  "11" "materials\models\player\hvyweapon\cheavy_normal.vtf"
 }
}