WinSPMBTv4 Upgrade

[Marcello]

Horses said:
The TU-160 is similar to the B1 Lancer (B1 is in US OOB). Why should it be unnecessary ?

Actually it is not a B1 equivalent as far role is concerned. The TU-160 in its basic configuration is a dedicated strategic missile carrier. It cannot carry bombs, only Kh-55 and Kh-15 missiles (and it is possible that in practice it may not even be fitted to actually carry the Kh-15).
There is an ongoing upgrade program to enable it to carry others weapons, including conventional ones but using such a plane for tactical missions within SPMBT scope is rather far fetched given its primary purpose.
TU-22M were and will be used for these missions.
The B1 on the other hand was decertified from carrying nuclear weapons and has had several conventional payload options for quite some time. It has been used in Iraq for conventional bombing missions for example and for all practical purposes bombing mud huts is its primary mission these days.