If you wouldn't mind, please head on over to the following thread and present your opinion. I'm not exactly sure how well this would work out in game, but I thought it might be an interesting idea that everyone could enjoy. Considering the Light Assault doesn't yet have a class specific tool, it would provide you all with something to run around with until your update provided such. Please post your thoughts in the linked thread provided; if it gains enough support...I'm going to tweet the link to the Nanite Systems twitter page. If you feel that this tool wouldn't work, for whatever the reason, provide an explanation. I'm pretty much a dedicated Infiltrator...so I'm not intimately familiar with all the available grenade types.
