FA had an ACE system, if a streak was implemented I would like to see the same target initiated system.
So your enemy would see your icon with say *50 (the * indicating 5 kills in a row without dying) next to your name. All well and good looking up your score and thinking great look at my KD but having your enemy know your on one will be more exciting for hunter and hunted alike.
Nothing more impressive than 5 wingmen with racks of 10+ stars, your enemy has to think twice whether they want to take your streak or run in the opposite direction