Heheh
Just like me when I started in ofp
Anyway, the file prob will be in a .zip or a .rar file
If so, get winrar (
www.winrar.com I think)
Then rightclick on the file, and click "extract to zipname/"
Open up that folder, find the .pbo files
And select them, and then rightclick -> Cut
Goto your Op flashpoint folder, and open the Addons directory
Then right click somewhere in the white bit, and click paste
Then basicly you load up the game, go into the mission editor menu option, select an island (Say, desert island), and then double click somewhere, find your new unit (What is the addon? It will probobly be under the west side)
Then click okay
And Preview
Thats your new unit in game
- Ben