You are surrounded by 300 Spartans and can have two pieces of modern day equipment...

[Xpwn3ntial]

A lighter and my phone.

Behold the shaman!

 

[RadiusXd]

the magicka spellbook for teleport, and zangetsu

 

[Spandexpanda]

A SUBMARINE

 

[SD-Fiend]

hydrogen bomb and a fully stocked underground bunker

 

[linwolf]

Gas-mask/suit and enough mustard gas to flood the entire area.

 

[Jfswift]

Probably an FN FAL and a frag grenade. Say your prayers Spartans.

 

[Seyrroth]

So you'd just be holding pure napalm? Y'know that would be kinda awesome?

Flaming fist of fury

 

[Jark212]

Interceptor body armor, FN SCAR-H...

I'll fire one shot then accept their surrender...

 

[Seyrroth]

the magicka spellbook for teleport, and zangetsu

The magicka spellbook for crash to desktop

 

[Azure-Supernova]

A Yoroi tôshi dagger and the black Ka'Kari. I win.

 

[Nieroshai]

Assuming that they're for some inexplicable reason actively hostile towards me (that IS the scenario, right?) I will take a light machine gun Rambo-style (they're only wearing breastplates and helmets where it counts and I have armor0piercing rounds) and plenty of ammunition. Also, slash-proof riot armor.

 

[Creator002]

As said before, a minigun (preferably grounded so I don't go flying) and tons of ammo.

 

[artanis_neravar]

.50 AE Desert Eagle w/clip
and a
M2 Browning

If they don't believe I'm a god when I put giant wholes in their leader with the 50 cal
then I will retreat to my gun nest

 

[emeraldrafael]

a crowbar and some bubblegum
looks like its time to kick ass and chew bubblegum

But we're all out of Bubblegum !!! 8(

OT: A winchester 1889 rifle, and a few landmines.

Oh maybe a Sarate knife edge for close range.

 

[Feralcentaur]

A tank, and a predator drone of course.

 

[Cabisco]

Nuke and a Nuke shield?

If thats not allowed for some idioitic reason I'd go for modern day tank, i'm pretty sure i'd be unstoppable. Though that leaves some creative room for item two, I think i'd like something to listen to whilst I crush my foes so I choose my ipod.

Spoiler: potential problem with item two

that means no headphones AWWWWWWWWWWWWWWWWWWW

 

[Zyst]

Considering you might actually want to survive (And that most guys here think that Spartans can't throw spears, or that they would stand perfectly still as they see their flank being massacred by what seems to be a Dragon head spewing thousands of metal pieces.) I would have to go with Riot control gear (including Gas Mask) and I'd have Chlorine gas bombarded over them.

I don't think there's a much better way to handle this.