Whilst it is dead easy to have the duty roster avialable to see whilst you fill in your claim form...
The idea of the claim form, is as many have alluded to here ; so that you get immersed in:
1) What you are doing
2) Who you are flying with - esp your wingman...
3) What you did on the mission and what type of craft you think you shot down....
Or you can select alternative claims procedures in the workshops settings..
If I start allowing access to rosters etc hell I can even tell you what craft you shot down and how many but then why have a claims form...hence the settings in workshops
HTH
WM