Sorry about that, I would have liked to have had more time to go in and make the enemy shoot intentions and how to ragdoll them more obvious.
Currently if you throw an object REALLY hard at them (40 units/s) they will ragdoll, but I wanted to encourage people using scaling (like throwing a small object like a grenade, then enlarging it), so if an object is enlarging and touches an enemy they instantly ragdoll and go flying away.
I wish I could have explained that better through gameplay or tutorial, but there is never enough time!