Turn 10
Send panicky messages to the thing telling it we and non-hostile and have no grudge with them.
3+2=5:
Hey, uhh... We are umm... don't want to fight and uhh... please don't hurt us!
Message:
Hello! Welcome to Earth - home of Humanity and legendary neutral world! How may we be of assistance?
5+2=7: YOU SEND THAT MESSAGE! OH YEAH! TAKE THAT, ALIENS!
Try again to get approval for X-Com
4+1=5: Permission granted. You and your 5 allies are now known collectively as X-COM. You can recruit civilians and military members into your group, but there seem to be none around. You also have access to privileged military information and ordinance.
Prepare a gift basket for the aliens.
1+2=3: You grab some fruit and toss it in a basket.
Load cabbage cannons preparew to fire upon anyone chasing the Ood
6+2=8: You add some nuclear weapons to the cabbages, just to be sure. Locked and loaded. And firing.
Arm a weapon and wait.
2+1=3: You grab a rifle and put some ammunition into it. Unfortunately, you can't find much, so you only have half a clip (8 bullets).
The massive shadow's source revealed itself to be an even more massive battleship in the sky. A voice boomed down:
You have something which belongs to us. Return it, or the consequences will be severe.
The messages from Scelly9 and MonkeyHead reach the ship.
We will not engage you if you simply comply with our requests. Failure to comply will result in lethal force.
The cabbages fired by Noodlerex strike the ship, exploding spectacularly.
HOLY SHIT WAS THAT NUCLEAR CABBAGE? FUUUUUUUUUUUUUUUUUUUUUCK!
The ship disintegrates in the sky, with pieces falling all over the planet.
THIS MEANS WAAAAAAAAAAAR! I'm dead.
Millions of blue aliens suddenly appear about half a mile away. They are armed to the teeth with plasma weaponry.
Bonus points to who figures out what I've been playing a lot lately.