Unit cant continue with order -> attack???

I need a trigger for a tower defense where if the unit is being blocked...by lots of towers itll attack towers till it can go again...or just attack random towers, whatever you can give me will help. Im stumped so far. All ive been able to come up with is
(code)
Event - Unit - A unit Is issued an order with no target
Conditions - (Owner of (Triggering unit)) Equal to Player 11 (Dark Green)
Action - ???????????
(code)
Yea...I have no clue how im gonna get this. Can anyone help?

What I did is to re issue the move order to the creep if it kills a tower

Its not killing the tower though... lol. I need a trig so when the creep is being blocked it needs to kill a tower so it can unblock itself, heh. After that its all good. I got thinking about useing trigger queue somehow with unit attack and such and such, then I confused myself...sorry, heh.

Issue them the order to move, just once, and if they are blocked they will attack the tower .

try this, it is not protected: http://www.wc3campaigns.com/showthread.php?t=29360

WAAAAAA o_O thats not fair, my creeps dont do that. The just run back and forth all wishy washy and get killed no fair....Im going to check the map, thanks. If you know why my creeps dont attack plz tell me...stupid creeps, bah fraggin humbug!


edit: that re-ordering of units looks tasty. Thanks, but my creeps still dont attack the towers if thier blocked. Again they just run back and forth vis my regions...

Another question....what kind of move, just a move to point? I thought posibly attack-move but even if its not blocked ittll atack then right...ahh this really bites

Attack move would automatically attack everything that gets close, move would make them move till something blocks them

well the move thing really isnt working when its blocked...i dunno im stumped