It has to meet 3 criteria: - Not an assault mech: On long range survivability comes from ability to move back and forward and smaller hitboxes. Assault mechs have bad acc/decc and large hitboxes - a waste of tons. - Has jump jets: The variety of sniping spots you can get to grows exponentially. Also assault mechs can't jump well, even those few with JJ. - sufficient firepower. Not a light and probably not a medium, as it can't carry enough firepower. ECM or stealth is nice to have just to counter LRM boats. Plenty of options for clan, but I haven't figured out one for IS. PS Submax long range builds are acceptable, does not need to be a top range sniper.
