Wait up! If you're checking this out, direct your attention to my newest version instead!
https://www.simpleplanes.com/a/43LaJW/Improved-P-38L

Here's what I've been pouring my blood, sweat, and tears into the last 2 weeks. It's the updated P-38L replica! This time, I measured it again and again against every technical drawing, blueprint, and photograph I could find. When it comes to size and shape, I know for a fact there is no better Lightning out there. Everything is where it should be. Carefully, painstakingly nudged into place. I tossed away the normal landing gear, and built my own accurate set of Lightning gear, complete with realistic actuating speed and accurate 9 degree forward fully-extended angle. The guns are now accurately staggered like they are in real life, to prevent jamming. I reshaped the fuel tanks to match their real-life size. I redid the coolant radiators to make them look more realistic. I completely redid the front of the booms, giving them accurate propeller cones, and newer, more aesthetic intercooler intakes. I even went so far as to place the lights in their correct places on the wingtips and tails. I also placed the landing light in the correct place, and added little details like the pitot and the chin-mounted radio antenna. Lastly, I made the made the rocket rack look and function more realistically.

Basic operating rundown:
AGs 1-5 are triggers for the rockets. They fire in pairs just like they did in real life. Only fire them when you are flying straight.
AG 6 turns on your lights.
AG 7 jettisons your fuel tanks.
The VTOL slider operates your flaps. They are very useful for lowering your stall speed, and tightening your combat maneuvers.

Performance:
The plane is slightly asymmetrical. Because of this, there is an asymmetrical drag, and imperfect lift force. This results in a drift on the ground at takeoff, and a tendency to roll in flight. These can be worked around easily. To take off, throttle to maximum. Lightly tap your yaw controls to keep you straight. You can rotate very soon (100 mph or so), and even sooner with flaps. Retract landing gear once airborne. In flight, the plane behaves a lot like the real thing, reaching a little over 400 mph in level flight, having decent roll, and great pitch. The pitch is actually just a little bit better than it was in real life. The engines are modded to help achieve its top speed, so DO NOT touch them in the editor, or the horsepower will reset.
Landing is tricky thanks to the landing gear, but thanks to the flaps, your stall speed is super-low, so you probably won't have problems. Approach throttle with full flaps is 10%. Touch down level and straight around 100 mph, then cut power. Don't brake until the plane is going straight, all three wheel are on the ground, and the plane is not wobbling.

Here's some numbers illustrating how the real thing handles:
Max Speed: 414 mph
Cruise: 275 mph
Stall Speed: 105 mph
Ceiling: 44,000 ft
Max ROC: 4,750 ft/min
Takeoff Speed: 80 mph
Climb Speed: 165 mph
Approach Speed: 130 mph
Touchdown Speed: 100 mph
Max Airspeed to Lower Landing Gear: 175 mph
Max Airspeed for Flaps: Full - 150 mph / Half - 250 mph