Try to create an fps character

[TienLee]

So i try to create my own character but when in play mode, it separate and the position is not correct.

 

[Justin]

If you are using your own generic arms you'll need your own animations to go along with that. This page has some more info:

First Person Arms - Opsive

The arms use a generic model setup so they require the animations to be created specifically for that rig and cannot use Unity’s animation retargetting . . .

opsive.com