Here is a pack for unreal that includes 83 packs for use they all have the manifest included just copy them over and enjoy.
Just move folders to
C:\Program Files (x86)\Epic Games\Launcher\VaultCache
and enjoy.
Realistic Blueprint Weapons, Abandonedplace49, advancedfirstperson, advancedsocialsystem, advdisplandscapematerial, advlaserdecals, advvillagepack410
agents, aibehaviorToolkit413, AridDesert, ARPGInventorySystem, Birds
BlueprintInventorySystem, BodyBags, BPInventory411, CelShader413, Chameleon
ChamferZoneWeapons, CinematicMusicPack, CrazyDoorPack, DayNightCycle
DesertRuins, DoorsSFX47, DoorWinSystem, DynamicClocks, EnviromentalFires
ExplosionBuilder413, FPSWeaponsPackVol 2 and 3, FTMagicPack01
FXStarterKit, GTFreeMaterials414, HBMedievalWeapPack3, HDParticalPack
InfAfLandscapes, LowPolyRainforest, LowPolySnowForest, LousRocksCave410
MedievalTown, MilitaryPack, ModularSciFi Props 1, Modular Home
Modular Home Age Kit, Modular Neighborhood Pack, Motherships Rooms
Multiplayer System 414, Multistory Dungeons, Photrealstic Landscapes4
Photo realsticMountains49, Plants Pack, Player BUilding Template 414
Prototype Characters, PyroPartical Pack, Quest System, Industrial Set
Realistic Grass, Ropes Cable Hoses, Ropes Cable Hoses414, SciFiGlitch Post Pro
SciFi weapons Dark, Sculpted TexPack, SewerKit, Simple Cartoon FX
Space MUsic Pack, Spell cast System, Spline Enabled Fence, StasisPack49
StylizedLowPoly, SuperGrid, SuperGrid Starter Pack412, SwordAnimsetPro
The Art of Combat411The BUnker Pack, TPose Zombie1, TrashPLacer, Tropical Forest,
UIKit, VFX Weather411, Weapon Equip System 2, WoodenStorage Pack