ITERATIVE ATTACK VARIANTS:
Variant I: Multiply base weapon damage by the number of attacks the character would have under the standard system (BAB +11 = base weapon damage x 3 etc).
Variant II: Add BAB bonus to damage (BAB +11 = add +11 to damage).
Variant III: Add BAB and iterative bonus to damage (BAB +11 = add +11, +6, and +1 to damage).
Variant IV: Trade a Move action for an additional attack (at full BAB), or to get full array of attacks in the case of monsters.
Variant V: Every character gets 3 actions a round: Standard, Move, and Swift. You may sacrifice a Move action for an Attack action (a sub-category of Standard so you still can’t cast/manifest 2 spells/powers a round). And you may sacrifice a Move or Standard action for an additional Swift action.
Variant VI:
-If your BAB is +1 or greater you may make 1 attack as standard action
-If your BAB is +6 or greater you may make 2 attacks as a full attack action, but you get a -2 penalty on all attacks
-If your BAB is +11 or higher you may make 3 attacks as a full attack action, but you get a -4 on all attacks, or you may make 2 attacks as a standard action but you get a -4 on all attacks.
-If your BAB is +16 or higher you can make 4 attacks as a full attack action, but you get a -6 on all attacks.
Remember, even if you BAB is +16 you can still choose the option to make 2 attacks as a full attack but at -2.