- holding a ground Turning rate we currently have is crazy. No crew would survive that forces. Caps should be able to dodge only long range fire and have heavy armor instead, that only huge long range cannons are able to damage. Snubs can't do that, so caps wouldn't need solaris.
- long range bombardment That's slow huge long range cannons, like siege cannons and mortars. They should be exclusive for battleships, replacing secondaries. Use them to damage armor on bases and other battleships.
- super-shields Shields for battleships can't be penetrated - from either side. You can't be damaged through shields, but you can't fire too. So battleships wouldn't have ones on sides, where cannons are. Shields only at stern and at bow. Wanna chase? Down your shields.
About smaller caps:
- sniping battleships Battlecruisers should be able to carry one siege cannon and be able to damage battleships approaching from side. Those shots can be dodged however, so coming closer to a target would be a risk that pays off.
- assault role Shields on smaller caps should be like tube enveloping them from all sides/up/down, so they can attack battleships straight forward, coming from sides and quickly turn protected side to sustain being fired back. Wanna TSZ? Drop your shields. But chasing and running can be done with shields up.
- covering and deshielding That's why cruisers and gunboats should be able to lower shields on bigger caps, but from close range only. Pulses are energy weapons and their power drop by square. Trying to deshield a battleship should be very risky, so their main role would be covering your flagship from other small caps.
About snubs:
- damaging battleships Nope. They can't.
- swarm smaller caps That should be what bombers are for. For shields use EMPs and bomber screamer mines (stronger and no guidance). Snac should be fixed to hull, being bomber front gun. That would be only snub weapon able to damage a smaller cap. Come from back, or deshield and shoot. Small caps should drop shields to shoot in TSZ mode, as they are enveloped by shields on sides/up/down.
- kill bombers That is what fighters do. They remove other fighters too. No need to touch them with more balancing. New smaller caps should be too heavy to chase them, being able only to defend from bombers coming close to place a snac.
Torpedos? For damaging sub-systems only, like guns, shields, scanners... But that's another story. We use missiles anyway only because CMs can't work.