I played for about 8 hours today, and I have switched servers several times and have had no issues with desync, whether alone or in a group of 5. HUGE improvement for myself from yesterday, though I have yet to touch another ammo box or medkit or such just in case.... I know that supposed to not be the issue but after taking them off I was totally fine, so who knows? Anyways, It's better for me and I am very glad.