You're freaking out over nothing mate.
You're welcome to distribute your game you made with these mods unless the mod creator says otherwise, and as far as I know all these mods are allowed to be used.
Airmod is intergraded into most mods, aswell as FPS Creator V1.17 and up, so the use of Airmod is unnessicary, Airmod, Fenix and Project Green use an outdated version of FPS Creator, I don't know what the last one is.
To use them you just put the files you downloaded into the FPSC folder (back up first) and go about using them.
Download FPS Creator V1.17 update and you will have Airmod intergrated into FPSC, and if you use V1.18 Beta you can use WASP mod, which is an excellent mod.
Also, this belongs in the FPS Creator Chat.