General Romdoi gives a red die due to "natural" obstruction.
How attack sequence works?
1. Gather dice
2. Check obstruction
3. If no die, then cancel
Or
1. Gather dice - if # of dice 0, then cancel
2. Check obstruction - if # of dice 0, then cancel
Cause if 1sr, then an obstructed raider shot could be shot at long range, I guess.