Most of these I don't think are a big enough deal to waste the devs' time, but in my experience, the NPCs seem to walk out more when I'm using a spy loadout. I dunno if it's running to the elevator to put on a disguise, goign to the elevator to heal/gain IS or if it's the loadout for some reason or what not. It's really annoying, but not so bad if they're already at 0, 0, 0 by the time you get there. Then they don't free fire ^^ I would like to see this fixed sometime in the future, it's no fun having to go 300+ m to find your npc
The npcs shooting through walls.... the only time this has ever happened to me is when they tried to break shield and the animation pushed them back into another room. Just back up some and they'll come back into the room. When this happesn I dont think you can free fire using guns or whatever, but hacker attacks will still go through.
I hate the WM NPCs... it's not so bad with the lower level guards or whatever, but it gets annoying with the boss. What I did was interlock before he could. When he rolls out (and you know when it's gonna happen cause there's a pause and your special's won't go through even though they should have) back up and then run up to him and interlock. About the specials misfiring... I've had this happen, but it wasn't that big of a deal with hacker cause I had a high IS regen. It also happened to him, which helped A LOT. ^^ He would use those 1000+ damage specials but miss and i'd only take a few points of damage.
Yesterday I was running missions on an alt and every time I ran into a Machine "Ballista," it was using one of the MA trees O_o Was nice though, cause then I didn't have to break shield :P ^^
I haven't seen any NPCs that have fired faster than normal. Most, MOST (this excludes any NPCs using guns unless they are mach/whatever SMG and MA since they use rifles) of the time they are using SMGs though, and those have the shortest reuse timers.
It does seem like they are able to attempt interlock faster, but using 01 isn't really a good example IMO. Not unless you're killing 1-3 at a time. Any more than that and they will all go at your shield and you may only see one attempt interlock, but more than one is trying to break your shield. Now, the only non interlock builds I can think of are MKT and proxies if you're gonna use those. MKT is fine in interlock, but as a low level, the specials just DRAIN your IS. I will usually just roll out and put on a disguise... but seriously... when you pvp people will break your shields all the time.
The gang NPCs following you.... I always hated that, but if you just go up to different floors in the elevator as fast as you can, I think they lose track of you and go away.
About taskmaster shooting through those boxes... I've seen this happen, but then I've noticed him slide around the platform like I was lagging even though it didn't seem like I was. Maybe it's some NPC lag bug haha >_< What I mean is I'll see him behind a box and taking damage from his hits, but then in an instant he's behind me or somewhere else that DOES have a clear line of sight.
Also, the only NPCs I've seen use those hybrid loadouts are the Unlimits and the Elite Commandos. I don't think I've see any others, especially not the standard mission npcs. One more may be the EPN Crusader NPCs, but I can't remember. They're either handguns or MA, I cant' remember if I've seen any use both though.
IMO, the only one that's really a killer is when the NPCs walk out. The rest we can deal with. They're NPCs and nowhere near as hard to kill as a real player. Most of the time, you can fix it yourself and not have to go very far out of your way.