Playing Fallout RTS is weird. It takes away from everything that people liked from the original games, like the character customization, the weapons selection, etcetc. It was an alternative post-nuclear life of your own. You could do what you wanted, when you wanted to.
Fallout RTS would make the whole thing not work. Even if you could modify each unit individually in as much detail as you could your character in the fallout games, you wouldn't feel a connection with them. Each guy, no matter how unique the army is from each other, would just be a part of a giant cog, and you wouldn't give a shit about him if he dies. Similar to major companies, each and every employee is different and unique, but the employers don't give a shit, just do your fucking job and get the paycheck.
I think the estimate for the number of people that one person could know before becoming indifferent to everyone is about 150. And 150 units in the battlefield in a modern RTS is pretty weak. Perhaps if it was squad based, then it could have some potential as a RTS, but it still doesn't match the excitement of a alternative life simulation that is offered in the fallout series.
On a side note: Grammar nazis and others observe this post and report any mistakes that I may have made. I'm sleepy and rushed, but it doesn't mean that I want this thing to have any errors.
Cheers