Ok, what i know and found right now, maybe it will be useful not to forget:
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for a note.
All Custom Weapons
consists of two files:
-zzz_allcustom_v1a.iwd
-zzz_optionaltotal.iwd
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"mg42" hosted in the - zzz_optionaltotal.iwd/weapons/mp/weapon1_mp
mg42 is renamed as weapon1_mp !!
Attachment 1430
This model (weapon1_mp) needs to be replaced (delete and past) by this:
Attachment 1432
This model does not shoot and just shown as the selected from the weapons menu. For this weapon need to embed code 'deploy' from 'awe 3.4.2'
Code need embed in zzz_allcustom_v1a.iwd or zzz_optionaltotal.iwd i dont know yet