I got both. Look at these things:
How big (or little) are you? under 6'1" or maybe 6'2" the assault will work fine
What size feet do you have? size 12 and under, assault will work
How far do you hike in? 1.5 miles or more, assault
How important is comfort? really important.. go buy some other brand, somewhat important, get the alpha, slightly important, assault ( hunt comfort seat and foot rests will bump up the comfort level quite a bit for either stand.)
These are my general rules of thumb. Not saying if you have a 13 shoe size, you cant use the assault, but in general, the larger sizes just dont work very well on the small platform. The alpha is an outstanding stand for most guys. Most guys have no reason to choose anything else (like the assault). I say, only if you meet the above criteria do you need to strongly consider the assault.