Depends which class you want a Euro Cap for. Firefox is easily outclassed by Famas Mk3, if you like FF so much try the Mk3 version. If you want a good euro cap PM gun, go for the desmodus since it's OP and easily the best PM capsule gun. If you want a good euro cap rifle I would recommend either Sidewinder or Carpio, although Carpio is just a skinned Mk3, both are very easy to use and pretty good. If you want a good euro cap sniper, Zebra is by far the best choice, having basically no recoil and a great ohk for a semi.