Not to be negative but there have been ign video's and multiple text guides for all 5 chests on all the planets since launch. They aren't super detailed but the chests aren't impossibly hidden either. You pass every single one during your missions just not obviously.

It's a hot mess of mediocre. But hey, it's fun at least until level twenty if you don't mind that every mission is like a fetch quest and super repetitive. But dear god the game play outside of pvp after level 20 is a nightmare. You literally just play the same 6 strike missions from the story over and over for better gear but with everything being a higher level. And it's rng based for which strike you play as well. I played 5 last night, played the same one three times, twice in a row. I took my time and was level 20 by 20-21 hours into the game. My second character is level 7 after only 2 hours.

Not even close. If anything it's only worth the 1-3 weeks worth of time you play it for until Assassin's Creed 3, Halo 4, or the new Call of Duty comes out and then never touch it again. Having played it and nearly maxing out my character on multiplayer I would say it's worth maybe 10 bucks max.