Re: Blackrock balance
I have not played Blackrock enough to know. The only ship I noticed (so far) that seems to vent faster than standard is the Desdinova, but that is because I put no capacitors on it, and it overloads easily if under fire. This is why I put Needlers and Maulers on it so I can outrange the enemy and do not get shot at in the first place; something I cannot do with the Medusa.
Asura seems overpowered for a destroyer. Extremely fast, better firepower than Sunder (because ballistics are better than most energy weapons; for example, Mjolnir outperforms all heavy energy weapons overall).
Re: Scalaron Blaster
The range is better, but the DPS is so bad for a medium non-beam energy weapon that if it is range I want, I will take something that uses ballistics instead. +50 range over heavy blaster/pulse laser is nice, but not if I give up over 300+ DPS by not using Heavy Blaster, which also costs 12 OP.
Re: High Maintenance on Blackrock ships.
I can understand it on Imaginos for fluff reasons, despite being inferior to Hyperion. That said, Imaginos should not cost as much DP (and possibly other stats) as Hyperion. 15 DP is a big deal when hunting small fleets and trying to stay 40 DP or less to avoid objectives.
Not sure about Desdinova. It is basically a ballistics version of the Medusa, and it seems stronger only because ballistics are generally superior to energy weapons. While it vents quickly, it has a weak shield, and it is prone to overloads if it has no capacitors. It also has short peak performance (180 seconds) akin to a high-tech frigate. Even Medusa has 300 seconds.
I can understand Asura getting High Maintenance, if its Logistics cost gets lowered to 6 or 7. It is extremely fast while phased, and can focus almost Dominator-level firepower at the enemy. Asura is very powerful and can solo fleets. However, if it gets High Maintenance, consider lowering Logistics a bit. I thought its 7.5 Logistics cost (and 30% CR deployment cost) was because it lacked High Maintenance. Asura also has short peak performance, 210 seconds.
Nevermore may not be strong enough to deserve High Maintenance although I can see why. It is very fast for a cruiser, with burn 4 and high top speed plus mobility system to make it even faster. It has a deadly main gun, and flexible weapon options. It can hit hard like an Aurora at times, and kite like an Eagle.
High Maintenance is a big deal once ships exceed destroyer size, especially if you cannot buy tons of supplies due to factions hating you (e.g., you try to play as a Templar).
Re: Other
Living off of drops is useful if too many factions hate you, or if you are struggling with low cash or supplies.
Assuming Missile Specialization 10, 44 Reapers (requires Expanded Missile Racks) for an Aurora is enough to nuke most, if not all, fleets in the campaign, though not enough to kill all ships in the simulator. Aurora has enough Reapers that it can use Cyclone Reaper as a primary weapon - just point and shoot like any other gun.