I know I know, this might be the same as the "Weapons Testbed" Aircraft that I made, but this is modified with weapons.

I TESTED this on the brown pearl, and yes, you can beat the brown pearl with this one. This is a Multirole aircraft, so you can shoot down airplanes and attack ground targets with it.

weapons:
30mm dual autocannons with a fuse
6x KSM-73R Multirole Missiles.
4x T-12R Air-To-Air Missiles.
2x TsHk-26 Anti Ship Missiles

Activation Groups:

1: Open Canopy
2: Open the Nosecone (for radar maintenance)
3: (none)
4: (none)
5: Eject
6: Ejection Seat Parachute
7: Drag Chutes for Landing
8: (none)

Some Improvements:
since the Brown Pearl moves in a zigzag like manuver, I thought to make the manuverability better, especially at high speeds, to make pursuing it easier.