1. Install LA 2.1 + additional 1.3 If you install la mod, you can find LA mod folder in emergency4 folder(wizardworks -> 911 -> mods -> LA mod folder) 2. Unzip my unit pack If you unzip my unit pack, you can find unit pack folder in emergency4 folder(wizardworks -> 911 -> mods -> unit pack folderr) 3. Copy Unit pack files in Unit pack folder(for example Models, Prototypes, Units Etc) and Paste that files into LA mod folder(you have to cover LA mod files with unit pack files) 4. Enjoy mod