[I fell sometimes under the terrain in my K-Drive in Orb Vallis]

I fell sometimes under the terrain Orb Vallis.  That also happened to a friend of mine!

[Can't Use Air Support Charges]

Also I was looking if anyone  else have problem with the air suppor, after the patch and some mision I can not use those what is going on ; I dont know, be glad they read this and take action quickly.

[Mesa Melee Bug]

That happened to my Mesa today in a syndicate mision, mobile defense  like you said. Is annoying that bug!

[Melee Weapons Don't Attack]

It happened  to me today in an infestate exterminate mision that appeared also the eximus corrupter lancer platoon to kill me.I was using  the melee weapon Halikar.I roled and change weapons and  I can not use melee after I was interrupted using it in a long range melee attack very annoying we need to fix that as soon as posible!

[Hotfix 12.4.1]

Dunno if this is the right place to post this but after this hotfix the Interception part of Tethra's Doom has become impossible to win, literally thousands and thousands of Grineer pour out of everywhere to the extent that even four man squads are being overwhelmed not even five minutes into the mission. 

If this isn't a bug or glitch then you've just gone and ramped the difficulty up far too high now.

I notice that also some minutes ago too much  grinners an insane spawn I was obligated to change to my Valkyr and to use my team medium restore to not die, the team was overwelmed too much like 10 or 20 or more  in all the areas of capture  --___--. Shortly the mission fail.

[De, About The Incoming New Faction...]

In my personal opinion may be the Stalkers one of them.