You need:

gtos_cu_581_eng
apos_upd_tar_rak_mar13_eng
gtos_patch_march13c4_eng

Though I'm not sure about gtos_cu_581_eng, the latest is c1, but what this is...

The order is: core update (gtos_cu_581_eng (c1?)) - first, patch (gtos_patch_march13c4_eng) - second, everything else - after these.