Yep cargo animations can be replaced a majority of cargo anims falls under a single cargo anim, I believe Dreamy Night or Wilco fixed this in their anim replacement pack. It would be great if it can be done in this.
Also is there plans on redoing the RPG/Law/AT/"you get the picture" anims, the BIS ones were good for their time but these anims have lifted the bar and I would be really interested in what you can come up with