ut ipse ... mitteretur:
An Uu purpose clause showing what Marius had hoped for. UtPurp
Qua re:
Sometimes written as one word: quare. Translate as "On account of which thing..." or "for which reason..."
ad urbem:
The fact that Sulla brought his army into the city of Rome was very significant.
By bringing his army to the city,
Sulla was declaring war on the whole Roman state.
Sulpicium:
Sulpicius originally served as the legate to
Gnaeus Pompey, who in turn was a general for Sulla. However, he defected
to the Marian faction because
Marius had promised that he would help to alleviate his debt.