The gun stops firing entirely. No bullet animations either, so it become impossible to shoot at the other player. It's not like the invincible player glitch. I've see those and reported them. For invincible players I can fill them full of 100 bullets, get hitmarkers, they just don't take any damage. And it's not lag either, this is totally different. It happened a few times last night too. I can't provide a video since it's PS3 not PS4, it would probably show up on the replay in theater mode, but that feature wasn't added to this game and I don't have a DVR, but it's pretty simple:
1. I ADS in to shoot an enemy.
2. I begin firing.
3. the sight cross air gets directly over their body, either they move, or I do.
4. bullets stop coming out of my gun, I've got plenty of ammo, it's a LMG.
5. I move my sights off the player but I don't let go of the fire button.
6. bullets start coming out of my gun again when the cross air isn't directly on the player's hitbox.
7. when the sight cross air gets directly over their body again.
8. bullets stop coming out of my gun again even though I've still got plenty of ammo.
It's very obvious, a few hours of game-play and you'll definitely see it. The best way to catch it is to pre-fire at a doorway or window before an enemy player runs by it. If you are holding the fire button down, bullets will be coming out in a solid stream, then when the enemy player runs through those bullets, the sound, animation, and hitmarkers all stop. Once the enemy player leaves, then the gun starts firing again. It's like everything pauses so they can run through...
If I ADS out, and hip fire, it will hit them, then if I ADS in while still firing, it will continue to get hit markers, but if I ADS first, start firing, then drag the cross air over the enemy or let them run into the bullets my gun stops firing. It's really weird, like maybe the host has the power to undo my fire button press because they weren't at the location where I started firing? Somebody will have to look at the code, but it is definitely a glitch that is being abused. Maybe a lag switch causes this, or they are blocking the inbound traffing coming from my ip address. It happens about to about 1 in 150 players maybe. Anyway, it boggles my mind...
Also, unrelated, I noticed another glitch last night. I was running downstairs when an enemy player upstairs running directly on top of me at the same speed fell directly on my head. Their name was red, so as soon as I stopped I saw them in front of me and fired, but my bullets went right through, like they weren't there. We tried to stab each other but couldn't do that either. Eventually we gave up and ran away. Once we died we could damage each other again. Anyway, that's the first time it has ever happened, but I doubt it will happen ever again, so no big deal.
Thank you for taking the time to file this report and for providing a lot of detail. I will continue to monitor reports of this, and escalate accordingly. If you find anymore bugs/glitches such as this, please feel free to contact us again and we will respond as soon as possible.