Security 'necessities' for Spaceships

[Ubiquitous]

My GM set out a game-plan for a future game we're playing; we all choose a character role (ship commander, pilot, what-have-you) and I got Security Officer. Since my GM's a little tired of ST 20/ETS-cracked characters, he wants to make up my sheet for me.

Which is great, but I'm a little worried he'll leave me under-equipped, equipment-wise, for dealing with a star-system's worth of adventure.

So, has anyone played a High TL campaign where they found certain items of constant use, and could anyone suggest some practical items to bring along on a spaceship, so I can suggest these things? I've already got a pistol loaded with HP rounds (same deal as Frangible, except more apt for combat was what I thought), a flamethrower for antagonistic or parasitic plant-life, acid dispensers for flame-resistant mold and something to fire armor-piercing bullets in case we run into any carapaced wildlife. And some flash-bangs in case things on the ship get reeeaaal hairy.

For both my protection and the crew's I think I should add armor for myself to deflect melee blows and stabbings (I expect to be the only one armed with a gun on the ship) and rubber bullets in case of 'space madness' and not a murder-spree.

Does this sound reasonable to the hivemind, and is there anything I should add to make sure I'm the best damn security chief possible?