Doing a 180-degree turn to check behind me during the Crucible takes about one full second to do, with the controller analog. In that time, I usually die.
I wish there was one button assigned to perform an 'about-face' spin to rectify this. I wish this were a common practice in all controller-based FPS games, but Bungie is a leader here. The only game in which I've found this feature is Left 4 Dead 2, on the PC with an Xbox 360 controller.
Note: I've just tried turning up my look sensitivity to 10 (the maximum), so I'll see if this improves my issue in the Crucible at all.
-
10 was the upper extreme, and way too sensitive. So I've been using 7 instead. I can now perform a turnaround in about 0.65 seconds. Longer than I'd like, but it seems to be the best compromise. I still liked the default of 3 for aiming straight ahead, since with 7 I overshoot my targets due to its sensitivity. I'd prefer to use 3 and have an 'about-face' button for quick back-checking.