GRAD Fortifications
GRAD Fortifications is an object placement system similar to
Plank, but more user friendly for mission creators and players.
Information on installation, configuration and usage here.
Pictures
Virtual Fortification Inventory:

Storing Fortifications in Vehicles:

Collision Detection:

Dropping Fortifications:

*
Credits
$3
https://creativecommons.org/licenses/by/3.0/
1. Fortifications action icon (slight modifications to improve low resolution display):
Sandbags by Chris from the Noun Project
2. Checkmark icon (modified):
checkmark by ✦ Shmidt Sergey ✦ from the Noun Project
3. Not on ground icon (modified):
Error by Shastry from the Noun Project
4. Collision icon (modified):
Cross by Doub.co from the Noun Project
5. Surfacenormal toggle icon (modified):
tab by icon 54 from the Noun Project
$3
http://file000.flaticon.com/downloads/license/license.pdf
1. Shift key icon (also modified to show ctrl and alt instead):
Made by
Freepik from www.flaticon.com