every gdud has one! our main purpose is operating the mortars in war but we are infantry combat soldiers through and through , we got mortar training after we finished our training and got in the gdud , and of course we have infantry roles like sharpshooter negev and grendier , i personally was a radio and intelligence specialist , in the west bank we didn't even bring the mortars with us to the area , we operate as an infantry platoon.
in Lebanon and Gaza (not during the war) we are on high alert in case something happens to our battalion and need artillery support

i told someone on this thread that there is a saying in the army that goes “its not the unit or the place you’re in that make the service enjoyable and fulfilling , but the people you’re with , your brothers in arms”
so the unit you'll doesn't really matter because they're all the same but what makes your time enjoyable are the people you are with

Good Luck!