Okay, another bug.
If I track a target using the I87V for range, and guide the missiles in 1/2 lead mode, the missiles DO NOT lead the target, the missiles don't even fly a straight line, instead they trail the target.
Example, if I am tracking a target to the north of me that is going east to west <---, and I track the targets range normally, the missile flies to the left <--- of the centre line, leading the target. But if I track the target's range with I87V, the missile flies to the right ---> of the centre line!
Very odd.
I think, that this bug was already reported, corrected, just not released yet...
... still waiting more to be collected.