WARNING: This mission requires DYOM IX.
DYOM IX: https://gtaforums.com/topic/981899-dyom-ix-modification-for-dyom/
If you use the the original DYOM version, it will say the title "DYOM" instead and will not work.
That means the file couldn't not read the .DAT file meaning the original version can't be recognized.
Only the new version can be recognized.

This is a test mission, fight those two opponents with your arms (weapon) or bare hands with improvement
by combat-to-combat.