Sniper medal would actually be quite easy to get with Bert. Bert can consistently target damage shot after shot. Unfortunately the medal is no longer available to artillery. Kudos to you for getting it when it was available. Now the Kolobonov's is still
available if you can take on 5 enemy tanks and win. Bert likely the only artillery that remotely stands a chance.
Looks like I was wrong on the sniper medal in artillery. I checked and Jappe 0114 has 2 in his BERT. John Arrowsmith also has 2 in Bert and 1 in the FV207. Matthew J35u5 has one in his GW Panther and mise 2412a has 1 in tier 3 Sexton 1. Playertd has 1 in
his M53/M55. Astraeus 9 has 1 in his M12. Now Kolobonov's that's a truly hard medal to get in artillery. Only one other player I know of that has one and that's in a BERT as well - Lordkillerdna.