I think there is a comma missing at the CLAN Gauss weapon from:
Gargoyle
Linebacker
Night Gyr
Sunspider
Summoner
StoneRhino
Direwolf
Kitfox
In the last part after "component_type_stock" should be a comma otherwise the game is not loading correctly and a new game is impossible (forever rotating loading disc).
"ComponentTags" : {
"items" : [
"component_type_stock"
"range_extreme"
],
"tagSetSourceFile" : ""
}