Certain maps or missions would benefit from not seeing animals. The current enableEnvironment command appears to disable all environmental effects (sounds and animals).
It would be nice to have an option for clients/servers and/or a function for missions that would allow us to selectively remove animals by type or altogether. (For instance, maybe I want rabbits, but it is winter on my map so I don't want butterflies and dragonflies flying around). Being able to alter the spawn rate of animals would also be useful.