So, during all the extra innings last night, I went ahead and extracted a kdz for your device and uploaded the partitions for you:
https://www.dropbox.com/s/9jdqr2h8lscj8mp/L70_MS323_10c.zip?dl=0
Here's the thing...you need to verify a couple things before using those files. As the filename indicates, this is from the 10c firmware. If you ever plan to root again, first verify that the 10c firmware is both rootable and does not contain anti-rollback. If those both check out ok, have at it. If not, report back and I'll extract partitions from 10a/10b instead.
Also, I'm not sure which firmware you were running at the time of your issue. If you KNOW it was 10c, then theoretically, all you should need to flash from my folder above is laf.
If you are not sure, then even though it may be overkill, I'd flash all the partitions contained in the folder. That's what I would do if it were
my phone. Some people would recommend you only flash aboot and laf, others may say aboot, boot and laf. We can talk more about your options before you begin if desired.
In that folder is basically everything except system and the stock recovery. I don't like flashing the stock recovery while in emergency fastboot mode because if anything goes wrong with the download mode restore effort but yet the stock recovery begins to function...you'll lose the far more powerful fastboot mode in lieu of a working stock recovery. That's bad because the device is satisfied that the recovery component of the boot chain is now working so it will consistently default to it. So basically you end up in no man's land with no further options to fix because the LG stock recovery is worthless for your situation.
edited to add: if you do end up using the 10c partitions, and if download mode is successfully restored, please use the full 10c kdz to complete the restoration. Apples to apples is always a good idea in these situations.