1. If any targets are alive after phase 1, then the cutscene plays, the rules of engagement are not respected (being allowed to shoot back immediately after the enemy rejects surrender by continuing to shoot at us; instead, we twiddle our thumbs for way too long). (I only discovered this in my guns-only, no-damage run.)

2. When the mission completes, the return line is mistakenly placed south instead of north/west back to Cima Island.

3. More a Mission 30 flaw, but whatever we got in Mission 27 hardly counts as a tunnel run. For how short it was, I fully expected Mission 30 to deliver a real tunnel run finale, and whatever Mission 30 actually turned out to be was a massive letdown.