Seeing as my server was mentioned here, I figured I really should give the netconfig being used for Seal Team Sloth.

language="English";
Windowed=0;
adapter=-1;
3D_Performance=1;
Resolution_Bpp=32;
serverLongitude=-97;
serverLatitude=33;
serverLongitudeAuto=-97;
serverLatitudeAuto=33;
MinBandwidth=71457280;
MaxBandwidth=322428800;
MaxMsgSend=1024;
MaxSizeGuaranteed=1024;
MaxSizeNonguaranteed=512;
MinErrorToSend=0.020000001;
MinErrorToSendNear=0.020000001;

These settings worked flawlessly before the newest update.

To be honest we're not sure if this is an Arma issue, or a mission issue. We're using a 100mbps line on a Xeon 1230v2 with 16GB RAM.