As it stands a Carrier’s biggest issue is resupplying, the requirement to suck dry every egg and morpher in the hive to make traps or act as a spawn point on some maps is impossibly tedious unless you have very active burrowers keeping tunnels so you can keep going back.
As a caste it is encouraged to make traps, and for the most part they can sometimes work, it’s funny when they do but marines will usually shoot them out.
It can slap huggers on people, but has very little health to support it doing that at the front, being able to die super easily.
It recovers health and plasma incredibly slowly compared to other drone evolutions, making it fundamentally a weaker support caste in terms of weeding, or sustaining pheromones (that make your plasma count fuckin minimal if you do)
Then there’s eggsac, it’s genuinely super fun to play, droppin lil’ egg mines to help friends cap, let huggers spawn from them. But even then the caste suffers immensely from terrible plasma regeneration, health and 0 armour, but the increased accuracy to hit the larger carrier.
It has abilities which are objectively trolling to use, like hucking huggers which immediately get shot and have a huge cooldown to turn on, or the contentious act that make other xenos flame you - carrying eggs because resupplying sucks.
As it stands I place 16 traps, then go eggsac when I play carrier because the resupply is simply just not worth it. Carriers feel like a t1, not a t2. Compare it to other t2 drone evolutions, the Hivelord, a master of building, the bane of marine pushes, and massive plasma battery, and Burrower, one of the most infamous castes in the game by people like PIG. Whereas… Carriers can spawn huggers, make a few traps… and kinda just exist. No marine fears a carrier unless it’s a pure 1v1 and the carrier lucks into frenzy tackling you to slap a hugger. Assuming you don’t kill it with the middling health pool, unimpressive speed and so on.
Edit:
All frontline capping can just be done by sentient huggers, invalidating the t2 caste in entirety. Or alternatively ghosts eat all your huggers and die, getting no hugs and forcing you to do tedious resupply. It feels like this entity which is genuinely horrific, carrying many horrible, scuttling huggers is aimless at the moment. If we solidify it into a better frontline caste, maybe that would justify it being a t2?