TBH I rarely drive tanks because TR gets the Prowler.
Being NC, I feel bad for TR. After many rounds of nerfs it seems TR has slowly been demoted to worst faction. I'll just cover their tank for now.
I stated long ago my belief that the two-shot main cannon is a disadvantage to their tank (for various reasons), but anchor used to be fucking devastating, and the original three continents were so open that it could be abused at range. The prowler was scary back then, and (on mattherson) TR were the most skilled at using their tanks. Anchor has been nerfed, TR's ES secondaries have been nerfed into oblivion, continents have been reworked with a focus on infantry combat, and hossin is 100% close range for tanks.
The current state of tanks on Emerald is:
Vanu - farmriders (PPA) everywhere, beware when vanu capture a base because they will pull a locust swarm of farmriders out of it and go to the next base, rince and repeat. Tank on Tank combat achieved by the sheer number of farmriders. Saron has fallen out of use due to nerfs, PPA remains as powerful as ever and the only ES AI secondary to be so stupidly strong at its role. Hossin gives the magrider a boost by forcing every tank it encounters into close quarters so their shell arc and shell velocity don't weigh down its performance as much.
NC - still the gods of tank on tank combat, enforcer + titan AP on every tank, decent players regularly having bruce willis moments taking down multiple farmriders. Canister still a joke, but has gone from completely useless to mildly humorous with the recent buff. Shield health nerfed but still remains a gigantic "fuck you I pressed F" item. After both other factions AT ES secondaries were nerfed the enforcer is now the only ES anti-tank secondary that is actually powerful, compounded with the shield keeping the vanguard at god-of-tanks status.
TR - Anchor nerfed because it was too good at shooting planes and farming doorways (dumbest nerf ever), prowler ES secondaries were so screwed by nerfs that the most common thing I see on top of prowlers now is the fucking
halberd. prowler made even less useful by the lower number of prowlers in any given fight compared to the other factions (justifiably, I wouldn't play it either). The continent changes have not favored the prowler.
TL;DRTank balance has went from NC >>> TR > VS to NC >>> VS > TR
Reason: due to the insane relevance of secondaries, PPA puts VS in second place, enforcer + shield put NC in first, prowler nerfed nerfed nerfed.
*disclaimer* please keep in mind this entire post is in my point of view, your mileage may vary. If I seem biased against vanu its because I am, I spent the entire crabpocalypse period fighting them and to make it worse I did so on
mattherson, I'm still hung up about it.