there is no upgrade to the cobra mkIII, only sidegrades.
that said - i really recommend getting more than one ship for those roles. exploration and combat are pretty much the opposite in terms of outfitting and in many cases even on shiptypes.
get an AspE and a vulture ... or a DBE and a viper mkIII ... or a DBE and a DBS ... or refit your cobra for exploration and purchase a courier for combat.
you can make an AspE work in combat, but for what you throw on it on a-class modules, bulkheads etc. (and which will reduce its exploration capabilities to some extend) would finance a fully a grade vulture .... or five viper mkIIIs, which will all outperform it.
you can outfit a vulture for exploration (it is a fun ship for it), but an Adder would perform better and costs you 25% of it...
that said - i really recommend getting more than one ship for those roles. exploration and combat are pretty much the opposite in terms of outfitting and in many cases even on shiptypes.
get an AspE and a vulture ... or a DBE and a viper mkIII ... or a DBE and a DBS ... or refit your cobra for exploration and purchase a courier for combat.
you can make an AspE work in combat, but for what you throw on it on a-class modules, bulkheads etc. (and which will reduce its exploration capabilities to some extend) would finance a fully a grade vulture .... or five viper mkIIIs, which will all outperform it.
you can outfit a vulture for exploration (it is a fun ship for it), but an Adder would perform better and costs you 25% of it...