Original sentence: It’s managed out of Vivendi Games’ Los Angeles headquarters by Mark Tremblay, who acts as the President of Sierra’s World Wide Studios.The Sierra brand is composed of four development studios which called Massive Entertainment, High Moon Studios, Radical Entertainment and Swordfish Studios.The Sierra name still remained on Vivendi name products, and from 2006 onward, all Vivendi products would be distributed solely under the Sierra publishing label.The brand name of Sierra continues to be operated through Vivendi Games’ headquarters in Los Angeles.These companies employ over 600 people which operate under the Sierra umbrella.Vivendi announced that the Sierra brand name and logotype would still be used on VU Games products, run out of VU Games headquarters in Los Angeles.Wanako Studios
Edited sentence: Sierra continues to develop and publish video and computer games across all genres and is now a leading developer and publisher of interactive entertainment.The company is run by Martin Tremblay, President of Sierra’s World Wide Studios and is headquarted in Los Angeles, CA and employs around 700 people.Vivendi announced that the Sierra brand name and logotype would still be used on VU Games products, run out of VU Games headquarters in Los Angeles, and for a time that seemed to mark the end of Sierra.With the new change in direction, Sierra was reinvigorated with new senior management and four software and video game companies were acquired and integrated as Sierra's new in-house development teams(Massive Entertainment, High Moon Studios, Radical Entertainment and Swordfish Studios)and Sierra also strengtened it's relationship with it's independant partners