you guys should know what each sniper is for (imo) :
M21 EBR: run n snipe (one shot kill in hardcore
:P )
WA: camp or a worse vesion of run n snipe
Barrett: all-out sniping
Intervention: Quickscoping or a worse version of all-out sniping
i like them in this order:
1. M21 EBR
2. Intervention
3. Barrett
4. WA