Legionaries with slings

[Koyuncu]

I don't think it is needed to be well trained slinger to hit a large mass of enemy units. The mass effect of missiles can be used to harass or break enemy formations rather than in manner of one shot one kill. Also, it would be much easier to use against enemy cavalry since rider and horse present a good tall target. So far all seems good but I can't imagine how legionaries could use slings in their rather tight formation. Each slinger needs considerable room for swinging. Maybe they change their formation accordingly but I am not aware of any historical record of it.