The BOTs' ability to lock onto a target with helix/javs within a nanosecond (of their spawn, of you spawning, while you are in stealth, etc) is very obviously flawed. I cannot decide whether the gear "balance" update or the BOT update (at the same time) has had a worse effect on the game. I play the game at every SP from 2k-8k and no matter what configuration I use, the BOTs are ALWAYS capable of 1-shotting you while you can barely kill them with a full clip of whatever weapon you use. Only at the 6 star legendary weapon level can you reliably kill them quickly; however, NO PLAYER in existance can possibly be capable of doing what BOTs can do with Missile Racks or Helix/Javs. I've seen some really impressive players loop their javs in trajectories that is really neat, but none of them can circle above or around objects as well as BOTs due to their ability to lock on instantly, which has to be the main flaw on those particular weapons.
EDIT: Also I forgot to mention the Orion lock-on ability. For players there is about a 1-1.5 second time that it takes to lock but BOTs do not have this limitation