Gamers@Play's A Bluffer’s Guide to the Halo ‘Verse

If you’re a fan of video games in general and of first person shooters specifically, then there’s a pretty good chance that you’re counting down the days until the arrival of the long-awaited fourth instalment of the revolutionary Halo series arrives.
Unfortunately, it’s been five years since we last donned the green MJOLNIR armour of our favourite gun-toting super-soldier, so there’s a fair chance that you’ve either forgotten what has happened, or even more depressingly for the rest of us, you were too young to remember. Well fret not, we here at Gamers@Play are a generous bunch, so for your convenience here’s pretty much everything the normal person needs to know.