In arena this works flawlessly now, you have to set the key you want to use to focus trap and scare beast, then if you want to trap off of someone else's CC you just press your key that you have set to "focus trap" until you see your hunter throw the trap.
I have used this CC to get to 1900+ in 2s and 2000+ in 3s, the only things I had to manually control was when to burst, when to Beastial Wrath (acts like trinket now), manual call / revive pet, manual target and set focus, sometimes you have to use your silencing shot as a blanket silence instead of an interrupt to CC chain a healer, example: my ret partner runs in and HoJ's healer, I trap off that, healer trinkets most of the time, follow up with my priest fears him, then I blanket silence, sometimes will readiness and scatter into half duration trap if we close to a kill.
Please don't ruin this CR for the pve'ers Tuan, this was meant to be a PvP routine in the first place - if they want a good PvE routine they can use PQRotation or PureRotation or anyone of the other PvE Hunter routines - THERE IS NO OTHER HUNTER CC THAT ACTS THE WAY YOURS DOES IN PVP
After Tuan fixed the focus trap working for me last night I can safely say that I will get 2.2k+ in 3s now easily, the only thing that was stuffing me up was only being able to trap off scatter shots - as a lot of high rated teams run and stand on their healers as soon as they get scattered to try and eat the trap - you have to make it unpredictable when you are going to trap at higher levels, that's why really good to be able to force the CC to launch freezing trap at your focus on demand, not just off scatter - so now I can trap off ANY CC in the game just by holding down my trap focus button which I assigned in Tuan's CC GUI under "on demand CC"
The only other thing that would make this CC Gladiator capable (really, with the right mind, being able to KNOW when to use what abilities with this CC will get you gladiator), if you could assign buttons to force launch on-demand Ice Trap (the slowing trap) / Explosive trap at your target or on your team mate to peel for them. Had a few games last night vs mindless zerg teams that literally just trained our priest to death (Dk/hunter or melee cleave etc). Would be really good if sometimes instead of trapping enemy healer when we are trying to survive, we could shoot slowing trap/knockback trap on our teammate or on our target to let our team mates be able to kite and get away and recover, then we can use normal freezing trap to CC healer and get a kill when we have recovered - that's the difference between 2.4k and 2.2k players, knowing when to CC and knowing when to peel, at the moment with this CC it is GODLY for controlling healers, but has no way to peel dps (we can silence casters and conc shot melee but no point trapping them because it will get dispelled instantly).
I had to go out last night for a little while and while I was out my team mates played with a 2.4k hunter - they said that I landed traps better than him and I did more damage than him and they actually tanked the rating from 2050 > 1930 with him, the only thing he did better than I did was his positioning and his ability to know when to play defensive and he ate a lot of other hunters traps on our priest. My positioning isn't good on ranged atm because I have played melee for the last 5 years haha.
Sorry for long post, just all my thoughts on the CC, hope it all makes sense.