At 8 pages, 7 are the content. The is a supplement for the Edge of Space RPG (an easy system to learn; even for beginners). It's a well thought out supplement, reminding me of Aliens & Starship Troopers theme (which is not a bad thing). It also has sample characters to use.

And considering it's free; you'd be daft not to pick it up.

This was the product that introduced me to the Edge of Space system. I've got to say, it's pretty solid. The designer has managed to squeeze multiple interesting action setpieces into one little PocketMod. The system is straightforward enough that even novice RPGers can learn it in an afternoon.