modeling help

[bobmooglitcher]

can anyone help me get models into halo pc i know how to edit models but any time i try to inject an edited model into pistols fp i get an error

[DeadHamster]

You can't add or delete any vertices, only move them around.

[bobmooglitcher]

yeah i know that already

[DeadHamster]

what do you edit with?

[bobmooglitcher]

i figured it out