OOC:
I think that will work however there is merit in carrying out actions that have no effect on others and then step through those that have an effect on others otherwise you may say...
Player 1: I shoot at the Goblin 1, I shoot at him again, then I move behind the rock.
GM: Cool! You hit the Goblin and kill him and your second arrow hits him as he is falling to the ground. An overkill but ok. You are now behind the rock. Goblin 2 now moves behind the rock and attacks you with his shortsword.
Player 1:Oh wait. My second shot I shoot the Goblin.
GM: Hang on! So you want us to back u the action?