might and magic heroes VI what does good morale mean?

Question

it says sometimes my crossbowmen have good morale what does it mean exactly?

Answer 1

thats tab for heroes III, might have changed since

 

Morale	% chance	Effect
-3	12.5%	Freeze
-2	8.3%	Freeze
-1	4.2%	Freeze
0	0%
+1	4.2%	Extra move
+2	8.3%	Extra move
+3	12.5%	Extra move