First, let me start with the disclaimer, I hate dropships and dropship pilots, mainly because they are a continuous and nebulous threat just waiting to rush in and ruin my gunfight and they usually think they deserve to be unassailable. I'll look at the lineup before a pubmatch and offer my squad bounties on known dropship pilots. "First one of you to kill X (Judge) in his DS gets a million isk!"__ I usually go on to say I don't care how, rail installations are best, but ramming the DS with another DS is encouraged.
Swarms only work in combination with numerous other AVers and they should be buffed, they need to be fast enough to hit dropships that hit afterburners and outrun every other volley. An AA swarm is needed.
Anyway, the idea of limiting rail elevation and range is unreasonable. You will always be able to use terrain contours to elevate a shot above the normal range of motion, so any additional limits would be pointless. As for limiting range, it would neutralize the role of AV sniper. I realize you don't like being sniped, but you should be thankful you have enough EHP to avoid being one-shotted. You're already basically immune to infantry AV, but that's not enough for you (typical DS pilot entitlement). I would grant you a higher flight ceiling, or cheaper dropships, but not immunity from snipers.
As for redlines, they are only an issues with Skirmish 2.0 and Domination (lame game modes). I hope they fix the redline problem by reverting back to Skirmish 1.0 (a knockoff of BF rush). Attacking in circles (from A to B to C and back to A) feels a bit circular, and rolling objectives on longer narrow maps would make the busdriver role less lame.

I nominate this to the Post of the week!

I read it. It was epic.

Also just as a bit of trivia; the script I wrote for the video is 6000 words long. That's 10 pages printed out. And this is the edit. Those coloured bars are video segments. Each colour is a clip from a different video. Each video is recorded separately when I play the game. I used footage from 23 games. I have to record at least 60 games to get the 23 videos I needed and the right footage. I lost 32 million ISK in ships and tanks to get the footage of kills, maps and altitude etc for this single video. I have to be absoluty sure in what rails can do to a dropship and that means letting myself get killed with many different fits. People shot me down while I hovered to get the 100m and 200m footage i used in the side by side segment. That segment cost 3 million Isk alone.

The blue bars in the FX rows in that edit are the special effects like the pointy green hand and the side by side. They have to be key-framed and animated by frame keys, which takes about 10 minutes to get 5 seconds of footage completed.