I dont sure for all, but basically i think something how it for a not binarized method...
If you need it how Mod, in your Arma2 root folder
..\@Mytank\Addons\Mytank.pbo
If you need it without mod method, put directly Mytank.pbo file into Addons folder in your Arma2 root folder...
Mytank.pbo file should contain all files for your tank...
Mytank.p3d, model.cfg, textures files in data subfolder, etc