What if Mitch is waiting when charged? The extra attack is not part of an action so:
a) Mitch can fire his Shotgun (wait) and then make a first strike slash with his Sword (no doubts here)Sounds fair and simple here, as long as the ennemy has reached him in cc
b) Mitch countercharges and makes his free close combat attack, and then they resolve countercharge situation normally? (Im not sure here, but it doesn't seem to be against the rules)That is my interpretation of the rule indeed, and goes along with how it is writen. The attack take places before normal combat actions.
c) Mitch is charged from behind (normally he wouldn't be able to use his wait action, but automatic attack could be possible) Given Mitch is -the- epitome of the grizzled doomtrooper hero of the Warzone universe...i've absolutely no problem imagining that guy killing stuff without even looking. The rules does not hint to an exception either. I consider that he is made to butcher swarms of undead legionnaires(a la Army of Darkness) so that you need to commit a Nepharite or whatever monstruosities to prevent it. Independant characters will likely parry the automatic attack, or save it through armor so it's not that powerful, when you take everything in perspective.
d) Mitch is charged from concealment (Mitch cannot parry and opponennt gets additional bonuses) Does is disable Mitch's ability to strike? I know that considering normal models it would be disabled as in c), but since the attack is automatic it can be interpreted as reckless 6th sense swing before he gets stabbed.Same as the previous question, he won't get to parry and opponent will get additional bonuses, but he still would get the additional strike anyway.
-snip- Edited!