>I thought I had to rigg them myself.
Some of us are volunteering to rig because otherwise there would be almost none like previous years.
>Does it help if the models have the proper vertex groups? Does it matter how many textures the model has?
I don't know how to usefully use the vertex groups to be honest, I'll say no. Once I make the model take the same pose as a reference PES model, I remove all vertex groups and transfer the PES ones over with their weights, repainting any details if needed. This makes the model animate in game properly.
Each mesh has a single texture, so usually I'll make a 1024x1024 array of the textures if there are less than 9 of them and use that as a texture for the entire model.
Which team and what are you modelling? If you can't into PES, just send it/them over as soon as you can. If your team has no models yet I can bump you up the queue above some teams that submitted ten or more MMDs and it might be too many to complete by the first game. I'm not in the loop with the other Blenderfags progress