Hello folks.
The default weapon presets on the MiG-21bis are allowing it to equip 2xR-60M and 2x-R3R.
For what reason do we need a Tier 1 mod for R-3S?
It makes absolutely no sense at 11.3 to have such modification. Like a F-4E (at the same BR) having a AIM-9B mod. Which in fact it does not have. It starts with AIM-9Es and AIM-7Es and has a mod to increase the number of them per rail.
As such, i suggest the removal of the Tier 1 R3-S modification and moving up the sequence of modifications up. This way the R-3R becomes Tier 1 (4x R-3R instead of 2). Then at Tier 2 you get R-13M mod and at Tier 3 you get the R-60M mod for 4xR-60M.
There are other possible variations of the change, with the simplest one just removing the R-3S mod and leaving everything else as is.