Try and figure out how my bot works. It's probably not that hard, since it's pretty short. I did use some different techniques than you.
Here is my attempt at understanding your bot's DNA:
cond
start
.out1 inc
stop
cond
*.nrg 500 >
start
5 .repro store
stop
cond
*.robage 1 =
start
.deltie inc
614 .setaim store
stop
cond
*.eye5 0 > 'eyef and eye5 are the same since focuseye has not changed
start
*.refxpos *.refypos angle .setaim store
stop
cond
*.eye5 0 =
start
50 .sx store
stop
cond
*.in1 0 >
*.eye5 0 > and
start
*.refxpos *.refypos dist -- abs .up store
stop
cond
*.eye5 9 > 'an error in your code made the *.refeye *.myeye part go unused
start
.shoot dec
stop
end
I did find one error in your code, which is that 'and' should be 'mult' in the second-to-last line. Overall, you did a pretty good job.