The q3matt1.zip file you have requested: Maps Levels Missions / Deathmatch / M Titles / Turbulance - 409.53kb is not available. Perhaps try browsing all files for the game Quake III Arena and upload any files you want to share or are missing. This is the only information we could locate:
A pseudo-L-ish-corner-ish-shaped island surrounded by Hellfog (don't fall off!) connected with stairs to side alcove hallways with two rooms and.... oh what the hell - I can't explain it. Just download it. You won't be disappointed. Trust me.