Also, since you bring it up intruder.
I have done it once in the sim only, intercepting GS from above.
Arm the approach, turn alt knob to be higher, select V/S -1500-2000 and pull.
Use speed brakes to help?
DO NOT set a higher altitude when intercepting the G/S from above!!!
Until you capture the G/S, keep a reasonable altitude in the MCP. In this case, the ILS minimums might be appropriate if you are inside the FAF or any other fix with an altitude restriction. You might also use 1000' above the airport, because if you haven't captured the G/S before then, you won't meet Stabilized Approach criteria.
AFTER you capture the G/S, reset the altitude to Missed Approach altitude.
Use speedbrakes only if needed to keep A/S under control AND if allowed with landing flaps.