Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Confusion; Communication Breakdown; Distraction; Workload; Time Pressure; Situational Awareness
ATC Issue All Types; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Air Traffic Control Provided Assistance; Flight Crew Executed Go Around / Missed Approach; Flight Crew Became Reoriented; Flight Crew Requested ATC Assistance / Clarification; General Flight Cancelled / Delayed
Airport; Weather; Human Factors; Environment - Non Weather Related
Three approaches into SFO. First; we briefed at altitude my ILS 28R; but a report of 1/4 mile; we changed on descent to Captain's Cat II and re-briefed; then ATC during delaying vectors gave a change around 6;000 ft. South Bay to ILS 28L and re-briefed and bugged again; then vectored behind B777 heavy and getting bumped around. The plane stayed level at FAF!!! It is not clear all of what happened there; but the GS got full scale before we started down; so we went missed; admitted it to ATC and now they played the major role; both times they re-vectored us; for ILS 28L and then 28R finally; they left us high; very high; and the whole reason for this ASAP is that under the challenge of three attempts; I thought for sure we were cleared the approach and started down but had to clarify again that we were cleared because of the unusual height.Unfortunately; they didn't give us the ILS clearance or the appropriate altitudes earlier; but we kept making requests for lower.
Air carrier First Officer reported going missed due to unstabilized approach.