it all depends on the map for me,
OICW (no nade launcher) is the ownage gun of the millenium.
Jeb, you are so right - nothing else but the OICW and binocs (for that 1x more zoom and target distance) for big maps.
Call me a fool but I love the MP5SD - one of the most effective weapons of the game. Basically, when you fire it no one knows you're firing it. Even at ccb range. The OICW is great for maps like TANK, and the MP5SD is great for ANY seige map - take sensors - or small maps - take extra ammo.. Act like a forward scout.
What's more, the MP5SD can actually be used at full auto. In ccb, nothing beats the MP5SD for mowing the baddies and escaping to fight on...
Besides, the MP5SD is THE most annoying weapon in the game. It's what I call my beloved "peashooter" - at range, it can take 5, 10, 15 or even more shots to kill someone. This is especially fun when someone is running and you just tick, tick, tick 9mm happiness into them. Over and over and over. Besides, I take a perverse joy in having the most hits of anyone else in the game. :-)
Sixhits