Sounds like the plot of those "... has fallen" movies, or maybe the KPA Blue House raid, lol.Put the area under intense EW, radar offline, fake signals all over the sky, the works, make it seem like an invasion is immanent.
Special forces in ROC gab land with ersatz UH-60 near the Presidential Office Building, bluff their way pass or subdue resistance quietly and then claim they are to escort the ROC president to safety, with false flag fire fight if necessary. I'm pretty sure she doesn't know enough about helicopters to notice the deception. Once she's onboard head for a LHD offshore, just not the LHD she thinks she's going to.
In that case, as the previous poster said, you have access to actual S-70, so you could just use that.
I'll stop here because further would be off-topic.