Close combat
Looks to me that Close Combat attacks are much more dangerous for the attacker than Range Combats, they have a ~50% chance (on equal characters’ attributes) to be counter-productive. Using your round to make a Close Combat looks to me like a no-good investment because you are giving your target also an attack round over you.
Should not be better if the attacker has some kind of bonus over the target? (I know: in case of a tie the attacker wins, is this enough bonus?)