Remember to put things in the right places.
Things like Glocks Locomotives - Balls Locomotives go in C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\data\advdupe2
Things like The Big E's wheelbase E2 and Faz's horn E2 go in C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\garrysmod\data\e2files
Ballistic Studios
Glock
The Big E
Faz That Cyote
James The Engineer