You've positively identified a surface contact, but it's not the one we're looking for. With only a few hours to identify a single vessel out of many unknown contacts, we will make use of our embarked helicopter and boats to close with and identify multiple contacts simultaneously.

When you detect a suitable contact, launch a RHIB to identify it by opening the Docking Ops window (F7), selecting a RHIB and clicking 'Launch Individually'. Keep an eye on fuel consumption and range for your deployed RHIBs and helicopter. You can recall embarked units be selecting them and pressing 'B' (Return To Base).