It's no secret that Rainbow Six Siege is a ludicrously difficult game to learn, and while learning nearly 60 playable operators doesn't make onboarding easy, map knowledge is by far the biggest barrier to entry for newcomers. To stand much of a chance in a ranked match you need to know each map from top to bottom, inside and out - every destructible area of flooring, the layout of every room, and even which pieces of furniture can be shot through.
Rooms filled with destructible clutter like plant pots, paperwork, and computer monitors make maps feel more realistic, but they create messy, irregular lines of sight. Having to second guess every object in a room made sense back when Siege was first released as a tactical shooter, but now it adds an element of randomness that feels at odds with the game's newfound identity as a tier one esport.
Client-side calculations, like the way objects collapse when destroyed, exacerbate this, sometimes resulting in opposing players having slightly different views of one another. In an FPS game where a single headshot is lethal and rounds are won and lost on razor-thin margins, dying because your line of sight was obscured by a desk fan that didn't exist for your killer is downright frustrating.
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