I think there's a fine line. I classify Crota bridge as cheese (swinging across and despawning enemies by going off map). But that's the only glaring cheese I can think of right now. Everything else is strategy, IMHO.
Either way, I don't particularly care.
Side note: smoked Gouda for the win
English
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Jumping over the wall in abyss and the middle ledge on Crota are both cheeses. Staying back to shoot oracles/Templar.