In a miserable two-for-one deal, Chapter 11 bankruptcy proceedings have struck both Airspan Networks and Casa Systems. This comes as no surprise, as our stock tracker has charted their decline for months. For Airspan, a ‘prepackaged’ restructuring deal, with Fortress Investment Group has secured $53 million in new equity-backed funding. This should, it claims, eliminate all its existing debt, and allow it to emerge as a privately owned company within the next month or two – with the option to scale this deal up to $95 million, if needed. Fortress specializes in rail, aviation, infrastructure, energy, healthcare, and financial services – making the Airspan acquisition a little unusual. It claims a portfolio of over $48 billion of assets. In the…