really nice, I enjoy your use of towers
might I recommend +FlashHitPointBarsOnDamage?
create a text file in your startup folder (main game directory)
paste this: +FlashHitPointBarsOnDamage in the file
save as "All Files" and name it user.cfg
the hitpoint bars will now show up on their own when a unit is taking damage.
there's a vast amount of other commands you can use, a lot of them are very standard to most people, don't be afraid to research them
(I just wanted to give you this one because I think it could be useful for what you're doing)