Military Weapons Silver Pack

Well im considering buying this pack but i have some doubts.

1 - Is there each script inculded like for pistol or for Rocket Launcher, or a projectile script?

2 - Is it just a model pack, or there is scripts, animations, particles…?

3 - Is there any animations included, like a diferent hand position for the pistol or for the sniper?

4 - Is it compatible with First Person Shooter Blueprint?

Many Thanks for your time!