So to the end of level 2 i leveled up twice. I leveled up when i descended to level 3 and when i got to arena.
Wow, hitting clvl5 at HA is just about the fastest I've ever heard of anyone leveling on AoPc. It used to be pretty standard for one of the older veterans (I think AStranger) to quit if he didn't reach clvl5 by Chained Court: this usually meant either dlvl3 HA and dlvl6 CC, or killing enough enemies by cross-fire to level up on the first couple of floors.
And i even found Nano pack and assembled power armor.
Surely, the RNG was looking graciously upon you that day. While a lot of the game has gotten slightly easier, I'd say AoPc has only gotten harder. The requirement of no HR on Pacifism Diamond isn't that big of a deal, but even completing it on N! is ridiculous in and of itself.
Actually I've decided to drop the Plat/Diamond badges in 0995, since they're way too luck-based and don't really require that the player be "good" at what they're doing. Such a victory will probably merit a medal though, since it's certainly worth SOMEthing. (This doesn't discredit your achievement here, though: I myself have only gotten Pacifism Diamond once during 0991 and know how mind-numbingly ridiculous it is.)