Hi m8, did this a few years ago. Basically split into 4 phases: Rangework/Field Firing at Archers Post - probably the hottest place on earth, Jungle Phase with 22 Regt Instructors, Adventure Training - lots of choices, and BG Ex on Dol Dol Training Area. Bloody hard work but some impressive sights to be seen. The R&R is well worth researching - if you are above Cpl you can get a Safari Landrover and take off somewhere of your own choice - in group of not less that 5.
The best bit is the Jambo House Hotel in Nanyuki where you can enjoy bi-sexual Alesha Dixon lookalikes for Â£4 each! LOL
Take plenty of wet wipes for the ubiquitous kling-ons and lots of mozzy repelent. After Kenya you will never enjoy a flushing toilet with toilet paper so much ever again. Enjoy.