This famous korean game under its mysterious .pkg format hides a lot of other files under different extensions:
Textures mostly use .dds & .png; SFX and particles use .particle;animations have the extension .a1 and I guess .pt1 and .m1 are the model and the material. (Not sure for what .ca3 stands for)
Here are potential 3D Models of the newly released character called Elims: https://mega.nz/#F!cBAh2YyC!tGWpB_0f-PG_Tb6taAAFrA
It's weird how they didn't compress the textures too, unless the 3d model format they use isn't compressed and it's from a korean 3d software app that I don't know of.