Welcome to GrangerHub's forums @DerWolfsKoenig !
Cool, that works ! Depending on initial input regarding the samples, we can try them out on the test7341 server at the development games.
As a source of inspiration, I recommend listening to the original granger sounds in the original data-1.1.0.pk3 file (that is a .zip file with an extension renamed to .pk3, so it can be unzipped the same as you would with any .zip file). You can find the granger sound files in the path:
/sound/player/builder/ , also you can find the organic_bounce.wav sound (used for the sound of the granger spit colliding with something) in the path:
You don't have to match the original sounds exactly, and you can deviate from them provided you keep with the spirit of the sounds and of the granger.
Something you should keep in mind about the character of the granger, it has deadly cuteness. When many human players encounter a granger, they see a cute creature that seems defenseless, so much so they often try giving it more of a chance to survive by switching to the blaster which is generally inferior to all other human weapons weapon. However, it can be argued that the granger is actually the most dangerous of all the aliens. The granger builds alien bases/forwards, without which the entire alien team would most likely not win. Even from just building an egg, the aliens spawn from eggs, and even the most deadly combat alien would not even be in the match if the player playing that alien didn't spawn in.
I recommend reading this article: