How you play your first eco round?

I personally don't usually buy Kevlar, though I should... I usually pick up a P250 with 1 smoke and 1 flash. For dust 2 I rush A long usually and throw smoke over the doors building, and flash through the doors. It USUALLY gets the job done, But this can be VERY sketch because they have advantage on CT side of A-Long @ Dust 2. (More maneuverability and visibility.)