uhhh maybe a grenade launcher with a modified ar2 model with a purple muzzleflash with that combine mortar impact effect on the ground but smaller (maybe also add a cooldown for the gl ar2?)

also if possible try using that grenade launcher model from half life alyx the one used to destroy a strider (Good Luck!)

another suggestion this big boi https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2643559972

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2643560075 (other part of it)

My main suggestion would be adding a blue laser sight to the mounted Combine sniper rifle. That would make it entirely accurate to the rifle seen in Half Life 2 Episode 2.

the gluon gun from hl1 as an emplacement

mortar trolololololol

can the sniper emplacement be one shot?