Help meh plz

So in dayz commander i press verify and it will work and i have run arma and oa before i did anything :(

So in dayz commander i press verify and it will work?

No i have been trying for 3 days now :(

Ok I need some help, what is happening is when ever i try to download epoch and overwatch (i have been told to download those two by my friends) it says the under laying connection was closed : the connection was closed unexpectedly. Help? oh and a red triangle pops up and when i hover my mouse over it said message pops up I have arma2 and arma2 oa AND the dayz mod