Yes. You absolutely can give Game Loss penalties at Regular REL for Outside Assistance. Same thing applies to Tardiness.
From the “General Unwanted Behaviors” section of the JAR:
“Players continuing to exhibit specific unwanted behavior after being instructed otherwise should be issued a Game Loss.”
The way you handle this is to Caution the player when he makes a serious mistake (or constantly makes the same less serious one). If he makes the same mistake again, tell him that this is becoming a major problem for the tournament and that if he does it again you will give him a Game Loss. (Be sure to specifically tell him next time it will be a GL.) Then, if he does do it again, give him the Game Loss.
Edited Joshua Feingold (Aug. 10, 2012 09:08:38 PM)