need a bit of help plz.

i am making a tower defense... nothing big, nothing that i am gonna get serious about, just a very simple td - much like line tower wars... but the units wont walking into my kill region at the end of the row. the only possible problem i can think of is that it uses an "un-buildable tile" which i think is pretty stupid, coz units should be able to walk on it.

I am good at making TD's so i can help u with this problem. things to check
1. that ur move command works check this by replacing thos tiles at the end with buildable tiles.
2. that the region that ur move command is set to is the kill region.
3. that u have the trigger setup for when they enter that region.



if these dont work contact me