Steward Platform controlled by airplane in Unity3D game

Hello, I want to create what they call a ‘Steward Platform’ to play a flying game while sitting on a chair which is placed on the platform. I’ve already bought the Arduino Starters Kit 2017 Limited Edition which had the Arduino UNO R3 with it. I’ve found all the things to make it mechanically. I hope you guys know how to make a script that looks at what the rotating position of the airplane model is so that if it is not totally horizontal, so let’s say with the left wing lower then the other to fly more to the left, then Unity3D sees how much percent, so Unity changes the position of the Linear Actuators connected with the Arduino. I’ve asked the Arduino forum how to get the Linear Actuator to have ‘feedback’, about that they said: "An analog potentiometer will plug straight into an Arduino’s analog inputs and give you the absolute position at all times. It looks like this kit at PA is appropriate: Linear Actuator Parts - Buy Parts for Electric Actuators - Progressive Automations Other actuators from other companies have a linear potentiometer along the length of the actuator.

So I hope someone knows the formula that makes Unity calculate the positions of the Linear Actuators by itself, while looking at the horizontal state of the airplane I explained. I hope you can explain me how to get the ‘Feedback’ to Unity too. I also don’t know yet how to send codes from Unity to Arduino. I want to use only four Linear Actuators, because I don’t have much money. I’ve already thought up a nice construction, so no worries about that. I’m very scared of being bullied because posttraumatic stress disorder because I’ve been bullied for eleven years on school, so please don’t bully me with things like: “You come here just asking a script, and you think we just give it to you?!” Please help me with the script. I’m from The Netherlands so please keep it a bit simple.

Thank you very much and have a nice day.

The Linear Actuators I want to use is the Actuator IP-66 (Model: PA-04) by Progressive Automations. The guys from Arduino said it’s not smart to use four, should use six. But I want to try it with four first, with my construction idea. Maybe someone knows high speed Linear Actuators that are maybe cheaper or better for my setup.