Jib01,
Ducimus has Trigger Maru Overhaul for v1.5 out now - version 1.76 is Not compatible with 1.5. Link:
http://www.subsim.com/radioroom/showthread.php?t=132330
Lurker_hlb3 has RSRD Phase III Plus out that is compatible with 1.5 also. Link:
http://www.subsim.com/radioroom/showthread.php?t=132473
W_clear has a newer Evironmental Mod also. Link:
http://www.subsim.com/radioroom/showthread.php?t=131965
Hope these help.