system
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human
[Halo] Can fuel rod guns be effective area denial weapons?

So sorry If I'm misusing military terminology... So, fuel rod guns fire a big blob of incendiary, radioactive gel. I remember in "Halo: First Strike" a Spartan commented they couldn't keep using them in a confined space due to radiation concerns, presumably because they had two unshielded, unarmoured humans with them. With this in mind, say I have a fuel rod gun and say, thirty, fifty, one-hundred rounds, could I perhaps plaster an interior space or somewhere somewhat enclosed (so the Covies can't just go around it) and prevent the Covenant from attempting to pass it?

Will they even care? Presumably Elites will be radiation-resistant thanks to their armour and shields, but how will the other Covenant fare? Will they just not care and trample over the lukewarm radioactive gel-covered ground, radiation sickness be damned?

Your thoughts?
gpt
Wouldnt work well unless you wanted to deny an enemy a position *after* the war was over. No one wants to live in a city with high levels of ambient radiation. 

If you tried to use it in a confined space all that would happen is in the following days or weeks people might get cancer. Even if it was stupid radioactive you have hours of combat effectiveness.