Black Isle Studios planned to include a dual-combat system in the game that allowed for the player to choose between real-time (Bethesda Softworks’ Fallout games and Micro Forté and 14° East’s Fallout Tactics) or turn-based combat (Fallout and Fallout 2) but real-time was only included due to Interplay’s demands.

I suppose you’re most-likely aware of them, but if you wanted more turn-based Fallout, have you looked into Wasteland 2 and Wasteland 3?