AWwrgwy ...I like your avatar. "What's with all the negative waves"..lol
This paint scheme is on hold due to the new 262 model we are getting.
As far as the bomb racks go, ALL A1-a's had attach points. Whether or not the racks were fitted depended on the circumstance.
It was Willy Messerschmitt that marketed the 262 as a multi-role fighter to the RLM. His promises that the machine could do both bombing and fighter missions was a key factor in it's acceptance. He also swayed Hitler with those same arguments. The 262 was designed from the get-go with attach points for bomb racks.
A special high speed bomb sighting system was also being developed for it. Delay in development of this sight hampered the use of the 262 as a bomber.
Kommando Schenk used many A-1a's in the bomber role. I believe these were machines from EkDo 262 which used them as fighters for the most part.
The A-1a's can usually be picked out as the ones with all the cannons and the bomb racks. The A-2's were usually missing a couple guns.