This is for getting the in game epic medal pascucci. This can be hard in higher tier games as you don't see many games with 3 or more arty. Tier 3-5 games often have 3 or more arty in them and make this medal more achievable. I would advise going for this in a light tank with good mobility wait for the battle to develop and look for a gap in the lines and make a break for the enemy arty. Keep moving to avoid being shot gunned, also low tier artys tend to all be in same place on the maps as newer players tend to sit in spawn.