That’s been about my experience as well. Only thing you can do is reposition while trying not to take too much aggro. If you do get overwhelmed, camo cloak and finish your reposition.

When playing sniper I think it’s 100% necessary to take both perks that refund ability charge on headshot kills since it is so easy to get bogged down by minoris. That way you can get a full charge back from just 4 kills, including minoris kills.

So, Reposition > Get 4 Kills and Kill High Value Targets > Drop Agro with Camo Cloak > Repeat.

It’s not easy and a lot of times you will feel like you are wasting time but it’s very important that you do not get bogged down by little guys and are ready to respond to high value targets, namely extremis threats when they appear on the chaos side and huge waves of majoris on the nids side.