did you put the titans textures in your mods Textures folder? They are listed in the mesh file.
I had already reduce it to 3 weapons in the entity file. Do I need to make changes to the number of weapons anywhere else, like the meshes or texture files?
It should be fine, the debug log will probably list the unused weapon points but it does not cause issues. If you have the mesh in text you can delete the point sets, just remember that the 1st weapon in the entity is Weapon-0 in the mesh, Weapon-0, Weapon-1, and Weapon-2 are all you should have for the 3 weapons I think. Don't forget to change the count.