God, the viper thing is going to be so dumb.
I had an opponent for a while who used the 'widowmaker' thing to its extremes. Taking only 1 cobra with a wm, putting it in with swords, firestorms, RT escorts
Annoying, but I guess not that big a deal.
Another note: From the RT list, you could reserve in a 'RT armed freighter' into a squad of widowmakers, practically giving them a +2 to their leadership. I suppose not that great, but interesting.