@dhruv123456 I'm similar to your situation, I've been back about two months ago after leaving Tanki about 6 years ago (I played until the Flash version existed). I came back to find flying tanks (really horrible novelty) and a few OP turrets that let people kill someone from far away, hiding and camping. Most people do not play the battle, they just do TDM everywhere. You cannot choose the map, welcome to MM. You'll see that without all these new augments you are struggling a lot. Many battles are so unbalanced one team is just dying every 2 seconds and so most tanks abandon continually the match during all the battle. Ah, you'll have to drug constantly. Who drugs more, wins. I used to never use supplies, now I have found that the main skill to reach top-3 is to press 1-2-3-4 very fast. Team play is almost non existent. We used to chat a lot (in English) to coordinate, if you remember. Forget about it. Some tanks are so OP you cannot kill them, because they have so high protection and they can use repair every 1 second. Try to avoid them. Many people have a protection of 50% against all turrets. Exploded tanks stay in a battle so long now, you'll get stuck by them in many occasions. Some battles are so full of mines it's impossible to approach enemy's base. So camping increases.
You'll see a big difference in PRO battles where no augments or supplies are allowed, so most players really suck in them, but those battles will often be plagued by flying tanks and OP turrets as well. So there is really no escape.