As a pretty consistent ghost user myself I was thinking that it need a bit of a buff.
Based on my own experiences it’s very feast or famine. Single people in the open are what you want, however you will take damage killing them, the most people I’ve killed in a row in “gun duels” is 5 before the ghost blows up.
Apart from the obvious PP and Plasma grenades dominating it, I’ve noticed other real dangers are other vehicles:
Another Ghost - You can either run or fight, running is a iffy option as if they follow you, then you have to keep running them and wait for them to stop.
If you fights its a slower AR fight, and if you win it’s a pyrrhic victory at best.
Wraiths - Takes to long to damage them, unless you can get point black and get stuck in their side you wont be able to take them out, even in this position they can shoot a wall at point blank and damage themselves while killing you.
Warthog - I’d estimate that a warthog can kill you 3 times as fast, 2 ghosts on 1 warthog would be an even match. Run immediately if you see a warthog.
Banshee - Hide.
Obviously these are balanced as the Ghost is an anti infantry vehicle.
However one thing that is a major hindrance to the ghost is its lack of manoeuvrability, In particularly the handling, the front of the ghost acts as an anchor, if your under fire and that anchor catches your as good as dead as it will stop all your speed and float you in the air for a good 2 or 3 seconds or just slowly flip you.
Whilst the anchor on the front is a reasonable constraint to the ghost, I think one area it needs a buff, as it was nerfed in previous games, is the strafe acceleration.
Not the initial acceleration, but the speed which you can strafe left then right.
If your having trouble killing a ghost this is the time to do it, if your in another ghost, or on foot trying to stick it, wait for it to strafe one way, and as it strafes back all momentum will stop and it will be relatively stationary for around a second, that’s when a ghost is most vulnerable.
OP if your having trouble killing a ghost on foot and you don’t have a PP/Plasma grenade combo, wait till it strafes the other way and use frag grenades, i’ve been flipped by frag grenades like this before.
Jetpack is also good for extra height to your jumps.
Also try to get to a wall, if the front anchors on the ghost touch this you will have an advantage as the ghost will lost control.