Actually, I haven't tried new rules systems in a while. We've gotten to the point where we're pretty much homebrewing anything we like on top of the skeletons of games we've already played. I'm working on a core of D&D 4th Edition, which has a very solid and simple ruleset (and very little else to offer, really) while my friend, as mentioned, has gotten a taste for White Wolf.



Yes, but why is the fighter fighting kobolds? If this is supposed to be a challenge, then the kobolds should not be fighting as 1/2 HD creatures. In 2nd Edition, kobolds don't have Advancements to boost them up to par, so you'd probably have to redesign the whole thing yourself (for example, in Shadows of Amn Irenicus' dungeons, you get to fight goblins even though you're way overlevelled for what challenge goblins should offer, same goes for 'Kobold Commandos' in the Firewine ruins) but in 3rd Edition, you should probably be giving them Warrior class levels to bring them up to par, and in 4th Edition you'd be putting Kobold traits on an appropriate 10th level template (probably 'Minion', or maybe 'Artillery' or 'Skirmisher'. It's the Dungeon Master's responsibility to ensure that his challenges are challenging.

On the other hand, if the kobold encounter is designed to show how much more powerful the adventurers have grown since the last time they encountered kobolds, then the encounter as you describe it is perfectly fine.

That's why I said I couldn't judge without context.