We are all about the Derp, 'bout the Derp, 'bout the Derp!
Long story short: If you have a tank with a Derp gun (like a Hetzer with the 10,5 cm Gun, or the KV2 with the Derp gun) you are more then welcome to join.
I dont care if you are a noob (i am too), if you want to use your Arty as a light tank or whatever, it's about having fun! Playing together with clanmates is all about the Derp! So a Derp gun is required!