Someone please help!

[Echo5Hotel]

My buddy created a mission but when I try to load it in multiplayer I keep geting an error stating that I am missing addon BIS_WeaponPack.  I can not find any reference to this anywhere except on a german forum web site that I cannot read anyway.  Can anyone give me an idea of what is going wrong?  It will not let me load the mission in multiplayer mode.

[dmakatra]

Have you got res?

[Flapje]

have you got the BIS_weaponpack?

[SharkDog]

BIS_weapons pack is either included in resistance or in new patches, make sure you are up to date