Cammy White vs Kim Kaphwan
Cammy has been hired by Jun Takeuchi and Masachika Kawata as a trainer, stunt and fight coordinator for Resident Evil 5 (which explains Sheva and Jill's combat techniques), while Ryu and Bison were hired on as trainers for Chris and Wesker, respectively.
The idea of beating the shit out of Chris is very appealing to Jill, as well as getting in touch with her bad side...if only for a moment.
Cammy is going through a complex fight scene inside the Monarch Room (i.e., where Wesker reveals Jill to Chris and Sheva) to Jill, Sheva, Chris and Wesker.
Then Kim Kaphwan crashes the set, disguised as one of the crew.
He has some serious beef with the former Shadowlaw commando-turned-Delta Red operative and he has come to settle the score.
Kim attempts to cheapshot Cammy with his Phoenix Barrage, but Cammy dodges the attack. Unfortunately, Chris is on the receiving end of the assault, while the other three are unscathed.
"Ow," Chris says from his place on the ground.
While Kim is distracted by his error, Cammy strikes. One Hooligan Combo later, and Kim is flung across the set.
Cammy flips in midair shedding her clothes, leaving her in her trademark Delta Red costume.
When she lands, Kim has recovered and the two charge.