After the death of Menendez and the dissolution of Cordis Die, the corporation was shut down. Many patents and intellectual properties were bought by the Coalescence Corporation. A large number of Coalescence's products are based off Tacitus products and research.
In the document, there is a sentence in Latin, "Morbi luctus, odio a consectetur blandit, dui tortor cursus tortor, vel consectetur metus dui id dolor." When translated, it results in nonsensical gibberish, or "Green, despite the lack of development, temperature industrial temperature requirements, or feel that the main fear of the pain.", meaning that the phrase is likely intended as a faux-Latin filler text.
In the downloadable content pack, Uprising, the multiplayer map named Vertigo takes place on a skyscraper which is owned by the Tacitus Corporation.
The Tacitus Corporation in multiplayer is also known as CyberDrone Industries as noted in Vertigo and Uplink.