I am trying for a long time a hacker to get the craft. Finally I got a little video material together. He is very bold as I think. He has done it in every game so far and I could not prove it. Here is a short video proof. There really is nowhere ammo box. He always plays alone.
But when he noticed that I was watching him, he left the game as usual. It was very hard for me to expose him by video evidence. The players name is Number13number ( http://battlelog.battlefield.com/bf4/de/user/number13number/ ) or bf4db account: https://bf4db.com/player/937462515

How u can see he is using UCAV and Mortar together without ammo packs. But the problem is, and you can see it in the Video that he has no ammo pack and there is no ammo pack on the ground.

The Video evidence u can find under https://www.youtube.com/watch?v=_My5ZhoP4fw 

And you can see it at the end of the game he knew that i knew about his cheat, cause he looked on the ground too, like me and than he gone out of the game. Every round is the same with this guy but this time i have recorded it.

ucavs auto reload and so do mortars. They are not dependent on ammo boxes or packs to get ammo back

but u need ammo pack for Ucav if u used it. u need an ammo pkack for a new Ucav

No you don't. It auto resupplies after 45-60 seconds. Can't recall the exact value because I don't use it but I do know it auto resupplies

https://forums.battlefield.com/en-us/discussion/36336/ucav-resupply

heres a forum thread where a dice dev confirms it resupplies itself after a set time

"But yeah no resupply, you need to wait some seconds before you get a new one."

yes you are right after 50 - 60 seconds but not after 5 seconds.

Yeah and he wasn't using it every 5 seconds. He launches a ucav and then fires a mortar until the ucav resupplies

but u can see only after not more than 5 to 10 sec.

https://eaassets-a.akamaihd.net/dice-commerce/battlefield4/assets/patch_notes/Patchnotes_FallPatch_EN.pdf

Support gadget: UCAV UCAV has been made weaker against vehicles, especially aircraft. Direct impact is against vehicles, airburst is against infantry. You now get a fresh UCAV every 40 seconds. 

No you see him pull out a pda thing to fire the mortar. The ucav makes a buzzing sound when it launches and you dont hear that ever 5 seconds

That's a fast ucav resupply indeed..but I think there's a glitch with ucav/mortar combo to reload it faster, maybe someone has more info

" You now get a fresh UCAV every 40 seconds. Ammunition: Auto replenish delay to 40s from 60s"

UCAV take 40 sec to reload, he does it in like 30 sec on the video but maybe that's the "powerpoint" effect

There was about 40 seconds from one ucav launch to the next in that video. The quality of the video is insufficient to establish cheats being used

2:37 and 3:15 are the timestamps in the video where a ucav launch is apparent. 38 seconds which is close to 40 seconds and who knows if the video footage has some time skips in it due to the low framerate. between those time stamps you can hear mortar fire

IT IS A CHEAT I SAW SO MANY OTHER PLAYER BUT NO ONE OF THEM DID SOMETHING LIKE HIM .... They play also mortar and ucav

prove its a cheat because the intended game mechanics and reload timers all correspond to his actions in game. Hes a scum bag but theres no cheat use

but u can see it in the video ... how short and fast he did all that with mortar and ucav

nope not a cheat. The mortar was already placed (and doesn't need to be redeployed to reload) when the video started and his reload time on the ucav is as intended.

i have ggood video evidence but it seems that even this is not enough !!!