Hadley's HopeJune 10, 2012Well, he was a grumpy guy to start with, but he seemed to mellow after a while.
If you notice that he THREE TIMES is rude to Milburn without provocation.
1. On first meeting "I'm not here to be your friend
2. In the Truck on the way to first explore the compound, Milburn gets in and sits facing Fifield. Without saying anything, and with a look of displeasure Fifield shifts up to another seat.
3. When they see liquid water, despite the temperature being well below zero, and Milburn makes light hearted joke, that it's martian piss, Fifield jumps on him in a nasty tone "Is that your scientific opinion, mr biologist?"
and he is rude to Shaw during the briefing, and gets right in her face with his excuse to leave when he gets freaked out about the "gigantic dead body"
however when he asks who else is going, he only looks at one person specifically, and that's Milburn. They do a bit of male bonding by trading mutual mild insults (doesn't share the weed though. - he could have - if you recall, in the Temple / Black Goo Factory there was breathable air.)
I think Fifields change into a zombie ninja killer probably had very little to do with his personality unless you think the black stuff has some spiritual psychoreactive characteristic that picks up on bad feelings ? And I sincerely hope that I haven't stumbled on a plot line there... although I can imagine how they would fit it in with the entry of humans causing 'a change in the atmosphere' in the room... ugh.