The Conversion Pack is a comprehensive add-on to the original Battlefront II. It adds 25 new maps - including all of the maps from Battlefront 1 not originally featured in Battlefront 2, 5 new gamemodes, a new era, and a substantial amount of expanded unit content to the original game.
The mod adds on a great deal of content. And for role playing especially, this mod is handy. However, this mod is far from perfect. As like with Dark Times II, I often experience crashes when trying to use certain maps, and some of the models (I keep think of Bastila...) seem to need a replacement or upgrade of some kind.
KotOR is a welcome era, but weapons feel a little less distinct, and it just feels less familiar when playing KotOR era. I didn't get to play GC, but I found often that the sides felt a little too similar for comfort. Some of the hunt modes, such as ones that pit Mandalorians against lower ranking Sith agents, were actually more interesting for me.
Really, it's the crashing that prevents me from giving this mod an 8/10. I have trouble believing that there wasn't some solution that could have fixed some of the issues. Perhaps in trying the patch (as I'm just reinstalling the game now) I'll find it easier to use.