Does anyone happen to know the shuttle departure and arrival times for the base shuttle to Heathrow? 

you can call billeting.. but i know one leaves at 4 am and then 730 i believe... 

Bus 1
leaves long term rafl 430am
biliting rafl 445am
long term rafm 515am
biliting rafm 530am

arrives terminal 3 730am (i always add an hour for traffic)

bus 2
leaves long term parking rafl 7am
biliting rafl 715am
long term parking rafm 745
biliting rafm 8am

arrives terminal 3 10am again add an hour for traffic just in case 

Thanks so much "12 months..." that was extremely helpful!! :) 

I have the listing because we use it so much. I have the return times as well if you need those let me know I will post them as well.