Red Faction Guerilla Singularity Bombs

I know that they are in EDF bomb caches, but I don't know where any caches are, or what they look like. Can anyone help?

I have only found them in buildings i needed to destroy

I've only found then in multi-player. :/ I'd love to know where they are in single-player.

there is one by the molehole location use your jet pack there is a building with some old guy in front inside is singularity bomb then take it to your safehouse into your weapons case and unlimted bombbiokiller6_6_6

Wrong.

You'll never get unlimited singularity bombs.

You can hold up to 12 at a time.