Igi, Hi, this is penneyfour, I am the guy working on "Dynamic Altis Airports" SP mission. I absolutely love your IgiLoad script. Excellent work. The good news is that there IS a forklift in the ArmA series... however, it is currently only for ArmA OA via Operation FrenchPoint (French Army Mod). http://www.armaholic.com/page.php?id=15870
Despite the odds, I have installed and have been testing the forklift in ArmA 3 using the All-In-ArmA Mod. Unfortunately, the forklift is not very stable in ArmA 3. But, maybe the Operation FrenchPoint team might be willing to fix the bugs and release the forklift for ArmA 3. It would be a huge win!
Just thought you would be interested to know. I created a simple video to show you how it behaves. Of course, I used some scripting to keep the forklift standing upright, and the "attachto" command to get the box onto the forklift.
Anyway, my thanks again to you for your wonderful IgiLoad script.