Lol, no, it wasn't fixed. Next time. (For now, you can just go zombie hunting if you like.)
This mission doesn't exist yet, so the texts aren't ready yet.
God no, never again. Doing that mission at Veteran difficulty was a nightmare: Too many damn Zombies with too much health along with some that can use guns to boot. Either I was supposed to do this at Promotion 3 or with the Skyranger, or the number of enemies in that mission was insane. I won after a long battle, with tons of wounded and spent ammo with not that much gain. I would have expected MAGMA rewarded me for cleaning their shit, but besides looting rights, nothing else happened. I would assume a new "message from MAGMA" congratulating the player would be fine here and fitting.
And Zombies have stun resistance, yeah? 
I was using the Stun Rod, that despite the name uses Electricity damage, which Zombies are vulnerable to. However, the Tomb Guardian was able to outright ignore most of the prodding. It also doesn't help it is an awkward two-handed weapon that needs a lot of TU to work. I need something better soon.
Lastly, speaking of missing texts, the "Messengers of Dagon" research unlocks Deep One rituals, the mission text of which is unfinished and the rewards borked (the Deep One Chieftain doesn't seem to work, and there are "human_Sacrifices" things that do nothing except being vendor trash).
This also kinda happens with the MAGMA LAB mission. Attaching a pic.
