The Spitfire Mk. Vll was a plane developed after WW ll. It had a few features that some modern planes have today including: Mini-guns, Targeting System, and a Turboprop engine. Even though the Spitfire was sufficient enough during the war, the military decided to experiment with it anyways, adding in two fast firing cannons, and making the first mini-gun (which is not as good as the modern ones [if that wasn't already obvious]). They also created the first turboprop engine making this prop-fighter faster than some others. Even though it was never truly used in battle they decided to scrap the project and mini-guns thinking that they would be useless during actual dogfights.

This is the Spitfire Mk. Vll created by me. Its top speed is around 400-500 MPH slowing down when you are turning, speaking of which the turn speed is absurd, like really really good. I've tested this against my fastest and most agile usable jet, The Euro-fighter Typhoon and it won as long as the enemy aircraft wasn't too close (it has missiles so what else am I going to do lol) and it can even dodge some air-to-air missiles from both enemy planes and the boats. I tried to make this as realistically fake as possible to not make it too overpowered. SIDE NOTE: when taking off you will need to hold pitch up to make sure the propellers don't explode and when flying to make it smoother and balance out the front heavy-ness make the pitch bar go halfway down to the first white bar (sorry it's hard to explain but you should be able to figure it out with some testing) and landing is semi-hard if you don't follow these instructions:
{1.slow airspeed to around 200-250 MPH 2.extend landing gear 3.bring nose down and get lower to the ground 4.once you are close-ish to the ground then start pulling up slowly 5.when going to touch down you need to brake (there are air brakes) and pull up lightly 6.when you are consistently touching the ground don't touch the pitch as you will make the propeller explode and crash}

If you did this correctly then you should have landed. enjoy :) PS: sorry for the reading