Following up on my note in the comments about 'WPA' and 'Ammomaker' earlier from Snake's Modpack.

It turns out, by looking through Item List Viewer in admin mode, I can confirm that:

- WPA doesn't add any guns.
- Ammomaker adds one gun = AK47

Snake's and FB41's AK47 does not seem to be incompatible; but you will need the right version of magazine and ammo for the right gun...so you will have 2 versions of AK47's existing with their respective ammo and magazine.

I also tested:

-> Attaching a 3 different scopes from WPA to vanilla Ruger M77 and that works fine
- But does not work (expectedly) with FB41's Ruger M77/22
-> Also tested FB41's Glock17: no problems
-> Tested M14 (according to tooltip WPA was overiding FB41 here) and it WAS ABLE TO attach FB41 attachments: .308, bottle, and flashlight suppressor.

Conclusions:
- So 'WPA' and 'Ammomaker' are only compatible with 'FirearmsB41' in the sense that each mod will use their own attachments and ammo...which is not a bad thing because Ammomaker only adds one gun.
- Also vanilla guns, which are overriden by Snake's mods, still take FB41's silencers. Though I only tested the M14 for that.


Other Caveats:
- I loaded Snake's mod first and I have no idea what would happen if FB41 was loaded first.
- I am not sure if any of these mods have changed the stats of the actual weapons like max condition and damage, but if they do, i'd imagine that the first mod loaded will take priority there, so Snake's mods in this case. Although, I dont *think* they change any stats(?)
- I have no idea if the model changes from FB41 are working when WPA and Ammomaker are running


TLDR:
FirearmsB41 is NOT fully compatible with Snake's modpack but many of the main functions of the three mods do NOT CLASH. Use them together at your own risk!

I hope this helps someone. Cheers!