How can I group units closer to each other

[RedFlash]

I wanna scale down units to a small scale but when they try to attack each other they can't move close enough to hit each other that will make it seem like their actually hitting each other and I set the attack range really low

 

[Day-Elven]

Set the collision size to zero.

 

[TerraNexx]

not to zero, if its zero, units will throuh each or... set it to around 2-3 (depends on how your unit is small)

 

[Day-Elven]

They will through each anyway, 2-3 is too small too.
Just reduce collision size, test, and choose which you like.