Just one at the moment but more will follow.
1: The rules 6.0 SPOTTING state that the LOS of a spotter in cover is never blocked if the Cover Level he is behind is EQUAL or lower than his Target Level.
But on page 10 under Opportunity Fire, Procedure, Section 1 it states "if needed, change the spotters stance as a free movement to make him higher than any barrier of the SAME level, so his LOS is not blocked."
The make him higher than any barrier of the same level seems to contradict the rule in 6.0
So which option's to keep? I'd say the first one.