1: There are no options at all for bots on Halo for the Xbox.
Rumor has it bots might be in the PC version of Halo, and bots possibly might be in Halo 2.
2: I do not know the answer to this - unless you mean the crappy Strider Returns on the Genesis. If that is what you seek, find the Emulator called 'Gens' and then locate the rom.
*Vanishes back into lurking *