No, except at the beginning of a sentence because it is
n
ot a proper
n
ou
n.
Capitalize b in best whe n it is used at the begi n ni ng of the se nte nce, otherwise b a nd r should not be capitalized.
Only best gets capitalized. It should be--- Best regards.
yes
Yes, "Kind Regards" should be capitalized as it is a formal closing in a letter or email.
Regards
nothing
Yes, you must capitalize the first word, UNLESS it is a small word, such as "It" or "A" or "The".
The "R" of respectfully is capitalized at the end of minutes.
Always... Army Reserve is a proper noun.
To me "Best Regards" always sounds like some has mashed together "Best Wishes" and "Kind Regards". Of those two "Best Wishes" can be used when you have a close relationship with the recipient and "Kind Regards" seems appropriate for someone you have met before but still have some level of formality to the relationship.
title
Voodoo must definitely be capitalized since it is a religion. The same way you'd capitalize Roman Catholic, Jewish, or Protestant.