This may sound like an easy question, but I have gone through the rulebook many times and haven't been able to find the answer. I probably just don't know the answer because of my inexperience.
Say a character has two base attacks on his profile without any attack modifiers (charging, extra weapon, etc.) He also has a powersword. Does this character make both of his base attacks using the powersword, or does he make one attack with the powersword and the other as a normal close combat weapon? Is only one special attack allowed?
Similarly, are extra charge attacks made using the powersword, or as a normal close combat weapon?