For SkylineGTRFreak's AH-64D
   
https://www.gta5-mods.com/vehicles/ah-64d-longbow-apache

Once installed with their instructions, open the dlc.rpf with OpenIV

Follow this path to the file to overwrite:

...\GTAV\mods\update\x64\dlcpacks\ah64d\dlc.rpf\x64\levels\gta5\vehicles.rpf\ah64d.ytd

If you wish to retain the original livery pack, while in OpenIV, extract the file ah64d.ytd.  I typically extract the original .ytd to the same folder as the dlc.rpf and rename it to origah64d.ytd.

When ready to overwrite with one of the provided liveries, toggle "Edit mode", top right button, and drag ah64e.ytd from the extracted zip file and drop here: 

...\GTAV\mods\update\x64\dlcpacks\ah64d\dlc.rpf\x64\levels\gta5\vehicles.rpf\ah64d.ytd 

Just to confirm the livery, I'd click on the ah64d.yft or ah64d_hi.yft file to open the OpenIV Model Viewer to see what the model will look like with the new livery.

Once satisfied, close the model viewer and run GTAV and spawn ah64d with the trainer of your choice.

Enjoy,
Gillman

