Here's my current SecondaryAirports class within class sws_twinlakes - it adds the Mountain Base airport. Takeoff is in the direction of bearing 90. Glidescope is a little steep to avoid hitting trees.

Taxiway is on the south edge of the strip. It works very well with vanilla Hangar structures placed at [10600, 21520] and [10560, 21520], leaving the other side of the road for support vehicles, repair/rearm/refuel, infantry camp, field HQ, etc.

AI planes should be spawned either just in front of those hangars or halfway inside to avoid issues.

class SecondaryAirports{
class Airstrip_1{
ilsPosition[] = {10382,21590};
ilsDirection[] = {-1,0.105,0};//Using steep angle to avoid striking trees on approach
ilsTaxiOff[] = {10826,21590,11270,21590,11277.5,21580,11280,21570,11277.5,21560,10955,21560,10630,21560};
ilsTaxiIn[] = {10600,21560,10560,21560,10480,21560,10400,21560,10384.5,21560,10382,21570,10384.5,21580,10392,21590};
drawTaxiway = 1;
};
};

Map image: https://drive.google.com/file/d/1UjAdEooR29qAQ4xsPb3iB74k7zWoMk53/view?usp=sharing

It was tested with all vanilla planes, and some CUP ones. Some CUP ones like the L-39ZA may have issues just because their flight model isn't great, and the margin for error on the AI glidescope isn't huge.

Nice. I didn't get notified of this for some reason. Will check it out...

Got the south airport done. Surprisingly easy to transform the mountain base airport using markers. There is still some grass clutter near the end of the runway and taxiway, but that's not really an issue.

Since the terrain is very flat, planes will fly very low right over the dirt road at the south end of the runway when landing. It's kinda cool to watch (since some real life airports are like this), but it might be a good idea to add some warning/stop signs or some other marker to signal to players not to park right behind the runway.

Class for the south airport config:

class Airstrip_2{
ilsPosition[] = {26955.861,3797.064};
ilsDirection[] = {0.4550787305,0.069756,-0.8904512053};
ilsTaxiOff[] = {26758.357,4183.524,26474.623,4739.283,26462.307,4741.409,26452.25,4739.088,26435.594,4727.756,26664.043,4280.189,26757.324,4097.648};
ilsTaxiIn[] = {26770.984,4070.933,26802.844,4008.603,26857.443,3901.747,26880.2,3857.229,26919.107,3781.093,26938.039,3787.963,26945.824,3794.741,26951.314,3805.971};
drawTaxiway = 1;
};

thanks for making these!

Appears that one of the rocks on the South Airfield is in the middle of the taxiway - the one by the plane's left wing

Looking at it some more, it looks like the runway texture might've been shortened and the runway code may need to be as well. Not sure yet about that.

https://drive.google.com/file/d/1JDH_fSbXE2vFIxSM849JaZQxO5lhRJtm/view?usp=sharing

Yeah runway was shortened due to extensive grass that I couldnt make go away (mask issue), and the code would need adjusted to be correct.

Gotcha. I also noticed a potential glidescope issue with large planes so I'll send an updated config for that airport when I get around to it (hopefully within a week).

wow thank you so much. whenever you have time no rush.. and feel free to check out my discord (see main page) if you want to post more screenshots there. I can always make a twin lakes section its more of an experimental right now than anything. still have much to do on my end but making progress.