So I've thought a lot about heavy missiles, currently they are really bad and Difficult to use, RLML or Light Missiles are often used instead of them because Heavy Missiles have incredibly bad application and very low DPS (Compared to other medium LR Turrets), Boosting the statistics of Heavy Missiles won't really do much good though because otherwise they threaten to step on Heavy Assault and Cruise Missiles (Esp because of the new RHML lauchers) and the more I thought about it the more I think that with the current set of parameters balancing Heavy Missiles and making them have actual good interesting game-play attached to them is incredibly difficult. When HMLs were everywhere, they were a very dumb low interaction module that had average DPS and good application with very good range, but since there is no tracking/cap use/different optimal/DPS ranges, they were basically 'Press Button' in terms of the thought of use associated with them. And I understand why CCP made them weaker.

I propose to add the following mechanic to Heavy Missiles;
Heavy Missiles gain %bonus damage+Application based on the time they have spent in the air, the longer the flight time, the more powerful Heavy Missiles become.

I think this would be interesting because it allows you to balance heavy missiles with heavy assault missiles better. (HMLs could have equal or even higher potential damage, although this damage would obviously not manifest in the range where HAMs operate, retaining HAMs as the go-to missile system for brawling, where as HMLs could do equilvilant LR Turret DPS at range, if the missiles spend sufficient time in the air, this would make missiles vs LR Turrets interesting too, HMLs don't sacrifice as much fittings/no cap use/tracking is of a 'lesser' concern, but Heavy Missiles are obviously a delayed weapon where as Turrets are instant, so it could create an interesting dynamic where HMLs have better fittings for damage, but suffer from delayed damage.

This also makes Heavy Missiles an interesting weapon to use, and to fight against, getting on top of a Heavy Missile user will reduce his DPS output, which creates interesting decision making in a fight vs a HML user, it could also be interesting for the HML user to swap to different targets based on their range so that he can do higher potential damage to them. There is also high risk for the highest damage, as shooting someone at the edge of your missile range risks your opponent moving away and evading all the damage all together.

This would also make Missile Flight Time Rigs interesting!