Desperados III

To do it faster, kill some guards and place them at the exact same place on the ground next to a bush.

Now choose Hector, save and take two body at a time to hide them.

Reload when all bodies are hidden.

I made a video to show a quick & easy way to get this:

I used mission 16 'The old & the new' - cleared the starting area, everyone picks up a dead body (Hector carries 2) and stands in a bush.

Enter showdown mode by pressing
Cycle through each character using and drop the body using
Then quick-save and press to make them all drop the body.
Reload & repeat for 6 x bodies at a time.