Simplify the following text for a Grade 14 native English-speaking person.
Original: The multiplayer in Tom Clancyâ s Rainbow Six : Vegas 2 has been expanded to include more than 10 new close-quarters maps , two new adversarial modes , a newer and different rewards system , and according to Ubisoft , improved online matchmaking .
Simplified: The multiplayer in Vegas 2 has been expanded to include more than 10 new close-quarters maps , two new adversarial modes , a newer and different rewards system , and according to Ubisoft , improved online matchmaking .