Generally speaking, vs multiple snipers, your best bets is to gren spam (5x) and take the map+quick tech as sniper builds have to stay compact. Spread out and cap, cap cap. Somewhat map dependent ofc.
Also, Jaeger infantry is alright, as G43's do a job, you have an army wide sprint if you really need to chase them off and camo can be cleverly used, although it is tricky.
Aside from that, MHT at least makes the snipers move and can occasionally bleed/wipe them. Not my favourite method, but on some maps, gren spam and a MHT is your best bets.
Unless you got super micro, where a sniper of your own and green cover usage could work.
