So I was having a look at the Grimoire cards on the Destiny Alpha site (sorry guys who don't have access!) to see if there was anything I could find that they might have left in by accident and I came across the attached image.. Note how there are 9 Grenade types already listed, and at the top it says 9/18.. It seems we might be looking at a total of 18 different types of Grenades?.. I also came across [url=http://i.imgur.com/qgKcZfW.jpg]this[/url].. Earth, The City and.. Jupiter?! Who thinks it'd be cool to see some of Europa in the Beta? *puts hand up*