Engineer 3 challenge

Engineer 3 "Deal 1,000 damage to laser designated enemy vehicles using lock-on weapons"

Does not function. Have shot 30+ aircraft and ground vehicles with lock ons with the yellow PAINTED box on them. None of it has counted towards the challenge.

Engineer Specialist 3 "Repair vehicles for 6,000 health in a match"

One of the previous challenges was repair 2,000 and required many conquest matches to fully complete. 6,000 in a single match is not possible.

Yea this is a bull**bleep** challenge. Spent an hour on a high ticket firestorm map doing nothing but repairs and only accumulated 3500 score. It is an impossibility to get this in a single match that isn't in portal. 

The Platinum badge and the Elite badges are both glitched, but I am supposed to have both of them.

 The best way to get the "lock-on weapons" one is to hop in an anti-air vehicle and use the secondary lock-on missiles. Why does it count? I have no clue. I did it exclusively on Mirak.

For the "repair vehicles for 6,00 health in a match" I literally just jumped into a fresh game on Mirak (you will be back here for the "destroy 50 aircraft one) and hopped between two light transports at spawn. You get in one, get on the turret, and shoot the other until it is just below the last health bar. Then, get into the one you just shot, so it is now "yours" and not unclaimed. Get out, heal it to max, get back in, and shoot the other one. Rinse and repeat. Took about the first ten or so minutes of the game for me. These two aren't hard requirements, you can even shoot the four-wheelers until they catch on fire, jump on it to "claim" it, then hop off.

Having similar issues none of my hits are being counted for this one.

I as well am having similar issues, it's scored 0 damage to aircraft. And i have shot down roughly 60 helicopters and over 20 jets with the SLM 93A. I have hit atleast half of the hits as direct impact, please fix 

Same issue here. Stopping all my progress with the engineer path.

Still an issue.

Same, been stuck at 385 for two weeks and have definitely killed both tanks and aircraft multiple times while they were painted.  

Mine randomly started working and I was able to complete the challenge. No idea why it started tracking it though so can't help.

I am stuck at this portion as well. I have tried the as cannons, the sight guided fixed launcher, my javelin, and my slm launchers. I’ve targeted painted and non painted alike and stuck at 0 of 2500. I’ve completed all the Assault challenges and stuck at this one. I was hoping to find someone that had an ahhaaaa moment and got it to work but it just seems bugged which is annoying because my KD sure as **bleep** tracks while I’m trying to complete these challenges some deranged gooner thought up. Instead of cooking up half assed skins and complicated battle passes for $25, fix the **bleep** you have.