Nope, it would suck.
Mostly because most of the tactics involved with the Fallout series is controlling One or a very small group in small situations. Most of the NPCs are just trying to survive, rather than engage in epic battles, and the ones that are don't much go for military-style tactics (except the Brotherhood and Enclave).
Any RTS based on Fallout would fall more into line with a god-game like the Sims or Sim City.
Mostly because most of the tactics involved with the Fallout series is controlling One or a very small group in small situations. Most of the NPCs are just trying to survive, rather than engage in epic battles, and the ones that are don't much go for military-style tactics (except the Brotherhood and Enclave).
Any RTS based on Fallout would fall more into line with a god-game like the Sims or Sim City.