The game is known to stray from canon for gameplay purposes. For example, chief doesn't run at 60 mph in game, and plasma doesn't kill marines in one bolt.
So someone write some BS back story on destiny like the books do for halo, making the Guardian absolutely op, then you can compare apples to apples, until then it's game play vs game play and guardians win every time.
Look at the halo 5 vidocs. They specifically talk about "realizing the Spartan", referencing the books which are canon.
Most halo players even go as far as to say Reach was non canon as it seems to clash with the novel, "Fall of Reach". However, the two can be fit together.
Oh shut up shithead, the halo novels are welcomed by every player and are know. To be the first source of canon. Halo is more than CE at this point, but there's no point in arguing with ignorants like you who don't accept fact for fact.
You're wrong.
I enjoyed the halo games. The whole fan fic jerk off session of the stories is what ruined that story.
When Chief was just a bad ass spartan the story was good, the whole halo mythos is terrabad story telling.