M.O.M.M.A.

It's M.O.M.M.A. to everyone else, but you call her M.M.A. Because you're a good puny human child...
==Location==
Trainwreck > The Mangle
==Quests==
Being related to the M.O.M.M.A. Said Knock You Out quest, you will encounter a one-off event here:
With cautious curiosity mingling with horror laced with macabre excitement, you slowly pick up the head and turn it over to FIND... 
It's a dummy head. How disappointing. Or relieving. Whichever helps you sleep at night.
There's not a soul to be found other than Lara in this dump and she's unlikely to have lugged a dummy into the place, considering her relative lack of supplies. Who could it belong to?
==References==