Oh, sorry, I totally forgot about this. I'm on TS with delta right now, I'll see if we can organize some testing for this

EDIT:
Delta and I had a good look at this and while the script itself seems to work fairly well, the vehicles (i.e. chinook, jackal, landrover) need some updates before it'll be a "3CB quality" experience ;)
Since you can only barely load a Jackal + a quadbike into a chinook it doesn't really add too much of an advantage compared to e.g. slingloading, so while it would be nice to have, it doesn't seem like it would currently change the way we play in a significant way.
With ace3 possibly implementing their own loading system, we're going to work on 1.) getting the chinook to properly support switching between "people" and "cargo" mode [delta has an update nearly ready that needs some fixing to deal with locality issues in the scripting] and 2.) creating para versions of the Jackal (ideally f the currently unreleased improved 3CB Jackal) and Landrovers so that they fit into the chinook without weird clipping and 3.) adding a cargo plane (either third-party or 3CB released) to the modset.
2/3 are rather long-term goals, though, so don't hold your breath quite yet

Delta and I will try to re-evaluate igiload and loading in general in 6-8 weeks, hopefully we'll have at least some of the things from the list above done by then