I would probably be the Propaganda minister of the island, playing some mind numbing Tropical music, while crafting speech to raise morale to build up a survivable and livable island.
Problem with that is, this isn't Tropico, 30 people (even though there's not even that much people posting here) does not suffice. The island is probably charted anyways, and some country must have a claim on it. So even then, if you do start a new civilization, once you establish contact with the world, that's all going to hell.
For the sake of the 'Game' I think we should assume that it is an uncharted island. Once you're brought to the island, you may never leave.
Oh, fine, but I want a female companion of which her only piece of clothing is a very tiny bra and very tiny panties. None for you! (Or anybody else, other than me more importantly.)
You have to be more specific, you could end up with Hilary Clinton or . . . . . . . . . . Rosie O'Donald.
Alright, without naming any... names, I will describe my so called Female companion. This will also ward off any imagination that may come from the likes of you... She shall have dark-brown, long curly hair. She shall have hazel eyes, and fairly lengthy eyelashes. She shall be skinny and fit. She shall have a brown-ish skin tone, and she shall make use of survival techniques, and be a productive member for the groups' survival. All while being prohibited from wearing anything else other than that tiny little suit.
She is also a radical-extremist feminist, a lesbian, and finds males to be physical repulsive. Plus she has a gun.
Fuck, I didn't consider ideology and sexuality. The radical-extremist Feminism is a little tricky to get by, and I must attempt at my absolute best in being Liberal to make her ideologically satisfied. However, she is married to me, and I'm just a romantic, she also is only repulsed by men which use steroids and what not to look like a big ball of veins and muscle. She cares not for an average male's looks.
Work on immortal giant coconut-shell statue of (real) Stalin is almost complete. Absolutely 0 people died in horrible, slave like conditions to accomplish this amazing feat.
President Lighthouse buys a Battleship from Ukraine then starts looking for small islands and blowing them up. Lighthouse land of sexiness declares war on... NEW BELGIUM!