just elaborating, thinking about how the constant first person would work...let's suppose we are chasing someone outside, running, classic scene, the guy sneaks in a small street and climbs a metal net to jump on other side, we do the same to reach him; this is the classic situation where TP is needed, the scene forced in FP would jsut result chaotic, as rolling on floor during shootings, just compare gta V 1p and 3p during animations out of combat, jump, roll, hop and climb walls is messy; FP should be used only during shooting phases and to check interiors for details, i really doubt is not possible to walk and look around in TP while walking in a building, of course if we are sneaking into an air conduct, FP is the only one. just allow the choice out of combat, would make all happy, some plus animatiosn to jump, climb and roll is not the ahrdest of work because are already made for npcs.