Hey guys (Im very new to the audio production world, but need to learn the basics to help me in my line of work (Videography)

Im trying to record some sounds outside for a video game project (professional level)

(Fast forward to 2:51 - 4:37)

After watching this video, id like to buy that mid side microphone setup, with 2 mono microphones.

1. What kind of frame am i looking to buy/get? (cheapest)
2. What kind of microphone am i looking to buy? (SG300 GTX x2? - shotgun Microphone 300mm)(cheapest)

thank you :)