Complex sentence: If Germany wins they also will have twice as many World Cup wins as Argentina (Germany 4-Argentina 2), while if Argentina wins, they will be on level terms with Germany (3 each).
Split into simpler sentences: If Germany wins they also will have twice as many World Cup wins as Argentina (Germany has won the tournament four times, while Argentina have won it twice). If Argentina wins, they will be on level terms with Germany (three each).