Well if you want a DMR you would be better off with a semi-automatic. what you have is a select fire AR a bolt action DMR/battle rifle and a semi-automatic sniper. if you want to use the Mosin nagant by all means do it's just that you would be better off with a semi-auto rifle and well to keep with you F2000 and Wa2000 we must find a DMR that is either from Western Europe or ends in 2000. ( on a serious note the PSL or SVD would be a great choice as a DMR same round as the mosin)
EDIT: relevant gunporn






