timetraveller has created a series of modding tools for Enigma including:
1) Mission Creator: Create custom patrols and Campaigns/mod existing ones.
2) Enigma RIPPER: Access and modify all the assets in the game
3) Enigma Color: A tool for generating color values to modify lighting, ocean, cloud, sky, etc. colors.
Enigma Voice Commands can be edited
Enigma In-Game Text, Text responses, etc. can be changed
Enigma Voice Responses can be changed.
http://enigma.tidesofwar.net/index.php?showforum=50
--East