The Phemom Rocket is one of my more recent project's. It has some familiar features from real life rockets like the engine compartment of the first stage from a older falcon 9 or the fairing from the new glenn rocket.
Start : press ag 1 and throttle up to your desired hight. Once reached, throttle down and deactivate ag1. For stage separation and engine startup press ag2 and throttle up. When you reached your desired altitude throttle down and press ag5 then wait 2-5 secounds and then press ag 4. after you separated the capsule you can land the second stage. I recomend you to just let it fall till you reach 6000ft then you can press ag2 and throttle up but not all the way (unless you want to go back to space xD) 15-20 % should be enough to slow the rocket down to about 130-59 mph. After you got under 2000 ft you have to sort of play with the throttle because depending on how high you went the scnd stge is a bit heavier or lighter then "Normal". Maximum impackt speed is 16 mph I recommend you to land with ca. 10 mph. If you dont want to land the scnd stage you can set the cockpit into the capsule or first stage. However you will need the finetuner mod to do this. And one more thing. You can costumise your rocket. This is just the "basic" vehicle.