Also, beyond camouflage, if you are moving like a Dirongian Snow Mule in the brush and making noise and moving jerky and unnaturally, that will be worse for your ability to blend or remain undetected than what camouflage you wear. Kendodude usually wears a leather jacket and some crazy camouflage from the Phillippines, and he does just fine getting to within range of his 80fps Tokyo Marui gun from the stone ages.
And on top of that, at the ranges of airsoft, movement gives you away. The oil in skin gives you away. The giant solid black weapon gives you away. The jingles from too much gear gives you away.
If you want just one uniform to get for everyone, Multicam is probably your best bet, followed by MARPAT. Reasoning being that those two are the most popular, so they have the best resale value, are the cheapest (largest supply available), allow you to play at the most games (stricter games have uniform or gear requirements) and generally work good enough or else so many people wouldn't use them.