The character has a standard Epic Skeleton.
You can change character heads and different clothing textures.
In the video, I tested the character with Advanced TPS Inventory Pack

Technical Details​

Video: Test Epic Skeleton
Scaled to Epic skeleton: Yes
Rigged: Yes
Rigged to Epic skeleton: Yes
Animated: No
Number of characters: 1
Vertex counts of characters:
Body 8.305
Forearms Armors 1.108
Head 01 797
Head 02 639
Head 03 820
Head 04 589
Head 05 845
Head 06 788
Head 07 1.166
Head 08 768
Head 09 930
Head 10 787
Shoulder Armors 874
Texture Resolutions:
Body: Albedo, Metallic, AO, Normals, Emissive 4096-4096
Heads Set 01: Albedo, Metallic, AO, Normals, 4096-4096
Heads Set 01: Albedo, Metallic, AO, Normals, 4096-4096
Weapon: Albedo, Metallic, AO, Normals, Emissive 4096-4096
Number of Animations: No
Animation types (Root Motion/In-place):No
Supported Development Platforms: PC
Supported Target Build Platforms: PC
Documentation:No
Important/Additional Notes:No