What Maboobs said. The last few Splinter Cells have been absolute ****. The last one which was even remotely good was Double Agent. Then Conviction was utter bull****, and now in this one, Sam Fisher, who could barely climb a tall-ish wall in his younger days (also read: in the earlier games), now possesses Spiderman-like abilities and climbs ****ing cliffs in a record 5 seconds without even stopping for a breath.
And when are developers going to realize (or rather, remember, for they seem to have forgotten) that having a cover system, a silencer on all guns, and a NPC AI only capable of patrolling linear corridors is NOT stealth.