It seems the old "super punch" glitch has made a return, as highlighted by our friends over at VGC. This glitch has previously shown up in past entries like Halo 2 and Halo 3 and basically works by swapping and reloading weapons while performing a melee attack.
While everyone expected it to be patched, as you can see above - 343's community director, Brian Jarrard, has already confirmed it's been "resolved" in the latest internal builds. In other words, enjoy it while it lasts.
Have you tried performing the "super punch" in the latest build? Enjoying this weekend's technical preview? Tell us below.