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The talented Just Cause (2006) composer Rob Lord has been scoring Machinima.com's ongoing original internet series "RCVR". A trailer for the show that appears after a Machinima review of Batman: Arkham City sports an interestingly familiar soundtrack, possibly by the London-based and ex-Eidos Interactive U.K./Avalanche Studios employee.
Keen-eared Tomb Raider Forums goer Lost_Paradise found similarities between music from this trailer and a composition featured in the "Crystal Habit" podcasts by Tomb Raider (2012) developer Crystal Dynamics. The piece in mention can be heard at the timestamps 7:08 and 7:23 of the broadcast:
Now refresh your memory with the matching cue which featured in the third Crystal podcast, presented in our high fidelity sample (21 seconds in):
Regardless of the striking resemblance(s), this similarity is most likely coincidental. Composers often derive material from licensed sound-banks that can overlap across other's works. However, it is not unlike Crystal Dynamics to collect trailer score composers on the music-front; Folmann and Dimitrijevic are examples of this.
The composer for Tomb Raider (2012) remains unannounced; a press release is expected before the end of the year, or early next. Stay tuned for news as it hits!
Update: After some internal research we have concluded here at MoTR that the piece doesn't appear to have any ties to Arkham City. Furthermore, scenes from the trailer occur across several episodes of RCVR; we couldn't quite catch the exact music in any five of those already aired. This is more likely the work of a trailer score composer or intermediate company. Subsequently, Rob Lord is probably not involved.