Supremacy is an entirely different game from encounter.
However, the difference might be extremely subtle at times.
i have seen many Unis and super Unis struggle, many of them still avoid supremacy.
this said, one thing won’t change.
the noobs will camp in the back until under extreme pressure at which point they will charge forward and suicide.
Doesn’t depend on the game mode.
And i agree, a typical supremacy game would be that after you have managed to cap a base, fight 2v1, pushed the reds out of another base, and finally capped that one, reach 900 points and u die...
only to see a noob suddenly rushing out of town to fight 1v3, showing his read to a ISU152. That noob capped nothing and scored grand total of 2 shots.
Happens every day.
There is no help or cure, not even an end in sight for that behavior.