The challenge is to finish the game using only very weak interceptors and transports. You may want to download my Firestorm/Lightning modification:
https://www.dropbox.com/s/mv95deijvc14rh8/ReaversXcom_Firestorm_Lightning.rul?dl=0and place it in the openxcom/data/Ruleset folder.
Then get:
https://www.dropbox.com/s/g23j8dtjlycxnw0/LIGHTNIN.MAP?dl=0 special map for Lightning
https://www.dropbox.com/s/15ahli4t8yzsvv9/LIGHFIRE.MAP?dl=0 special map for Firestorm
and place those in the openxcom/data/MAPS folder (backup your lightning map first). Then once in game, find "ReaversXcom Firestorm Lightning" in the mods list and turn it on.
But you don't have to use this for the challenge.
pics of the maps:
https://openxcom.org/forum/index.php?topic=3204.0When you start a new game, you can only use 1 weapon per Interceptor and you can only load your Skyranger with either 4 soldiers or 1 tank. If you used my mod, you can research and use the Firestorm or Lightning, but there's one catch: You may only use the Lightning for interception, and you may only use the Firestorm for landing parties. You may not use the Avenger for anything other than going to Cydonia, and you can only bring 4 soldiers or 1 tank.
Feel free to use any of the other mods I put in the forum link above.
Let me know what you think if/when you decide to try this challenge!