The truck has no canopy. It has several states though:
Model: armies\soviet\vehicles\us6_truck\us6_truck
State machine name: us6_state
Values: base, katyusha, supply
State machine name: supplies_loaded
Values: empty, partial, half, majority, full
These states can be found with the worldbuilder (C:\Program Files (x86)\Steam\steamapps\common\Company of Heroes 2\WorldBuilder_CoH_2.exe)
This has a NIS function which can show a list of states for each model.
Edit: This video might be more helpful than the guide: https://youtu.be/5V62qgEu3Ww?t=428 (7:05 - 9:00)
-
#Steam AliasWL%Streak
- 1.817139.855+5
- 2.47970.872+3
- 3.1118398.737+9
- 4.422218.659+1
- 5.377196.658+2
- 6.433301.590+2
- 7.11730.796+4
- 8.1347748.643+1
- 9.12957.694+9
- 10.341122.737+2

Netherlands



cblanco ★
보드카 중대
VonManteuffel
Heartless Jäger