Re: Crazy Target range Times
There are bugs and exploits with it.
For one, the timer on PC is affected by FPS (probably not a big issue on console) and simply does not time correctly.
I've reported this bug in the first days of release and they are investigating:
http://answers.ea.com/t5/Bugs-Issues/Crazy-Targets-Time-affected-by-FPS-A-lot-Gamebreaking-Bug/m-p/5184971#U5184971 (includes a video with a legit 11 second run)
(in short: if your system runs at 90 FPS, the timer counts 45 seconds for a real life minute, while 75 FPS does around 70-71 seconds and 60 FPS does 56-57 seconds)
There is also a chilly bean bomb exploit:
https://www.youtube.com/watch?v=AT7AlM0xTUE
And for the 2-3 second runs, probably another exploit or just straight up wall-hacking.