Download files from steam or android to get .mpk files. You will then need to dump .zzz files with VGM Toolbox. Set it up like this and drop .mpk onto tool.

Once you dump the .mpk you will see _CUT folder with lots of .zzz files. Examine the files to see the header ZZZ4. These are now ready to be decompressed.

Use DI_ZZZ4.exe to convert the _CUT folders. Use cmd to run the tool with these parameters:
DI_ZZZ4.exe -d [input folder]

You should see the files decompress in the cmd window if not then check files. 

Successful decompression shows MESSIAH in the headers.

To sort files better use this header to now cut files again. Use this setup. Drag decompressed _CUT folders onto tool.

Now use MeshToOBJ.exe to dump models. Untick the box show message to avoid pop up errors. Then tick all in folder box to batch dump directory. Since files are in _CUT folder tick  Travel to the _CUT decompressed directory and 

Some files will fail and will show errors. You can use Model Researcher to get these manually if you really need them. 

Textures are tricky. For this you must use Notepad++ to copy all the _CUT mesh files and add them to a new document. Rename the end _CUT" to .zzz" and then go to beginning hold SHIFT+CTRL and click and Copy as Path. 

You'll need to rename the folder too depending on where your .zzz are located ex:

D:\Program Files\Steam\steamapps\common\BLOODSTRIKE\Resources1\Resources_CUT\Resources_0000000F.zzz
renamed directory
D:\Program Files\Steam\steamapps\common\BLOODSTRIKE\Resources_CUT\Resources_0000000F.zzz

Now ALT+SHIFT and select the 1st line and last line in the document. Once selected go to Column Editor and type del with a [space] and then save it as del.bat 

Run the .bat anywhere or inside the folder and it will delete the mesh .zzz and leave texture .zzz.

Last step is to use RawTex to dump .dds from .zzz. I use the batch script with this setting, not all files will be this but it does do most of them.