OK, here's a Texas guy talking about cold weather like I really know something about it!
I've researched the heck out of synthetic, moisture management clothing for officiating and other endeavors, like running. While we don't have many cold weather games (we have a few, but it seems to be bunched in certain years), I run outside in the winter and have to be prepared.
For football, I have a Smitty long sleeve shirt that's the same weight as their short sleeved one. Meaning, it doesn't really provide much warmth. I recommend you use the under-stuff to keep you warm rather than the shirt. The exception here is that if you get rained on -- then, I recommend you buy one of those weather beater striped shirts. Wear that with the black heavy pants. The only reason I haven't bought that shirt is I am anticipating Texas going to the wide stripes in the next year or two (despite assurances to the contrary; Alabama and SC have already changed shirts).
Anyway, when you get to the under layers, I recommend you get good products. Champion at Target would be the absolute minimum I'd recommend. Don't go no-name elsewhere. I like Nike Pro -- I wear the light, sleeveless shirt in warm weather and when it gets cold enough to need it, I have the mock Nike Pro long sleeve. I've worn this down to the 30s. If it got colder, I would probably wear a 1/2 zip fleece pullover that I run with when its cold.
Unless its wet weather, just get some lightweight running gloves. I like Manzella gloves the best -- they make several styles. When its wet, just get some light weather proof ones. I don't have a recommendation on this one; I just used a pair of UAs in my cold, wet game a few years ago.
For bottoms, I don't think you'll need anything other than the regular weight UA tights or similar. I wear them all the time, including in basketball, though I'm considering switching next year to a running oriented model. I don't think you'll need the cold gear unless its really cold, BUT this is one area where UA is probably better than the other products unless you go really high end like CWX.
I always wear 2 pair of socks (Feetures). Now that we can where regular black socks I don't anticipate having a problem with my feet getting cold.