Ideally a tower with an ammo box on it. What my friend and I found so far is that in some big unidad bases, even though it has great cover with ammo box inside the house, the UNIDAD loses you really fast and stop sending reinforcements after 1-2 waves. The small bases that are next to big roads are actually more ideal to fight infinite waves of them.

But so far we haven't found a tower like this with an ammo box on it.

Can anyone help? Do you know one location like this? Thanks!

I didn't find the right solution from the internet.
References
http://forums.ubi.com/showthread.php/1716641-best-place-to-fight-waves-and-waves-of-UNIDAD

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