“Assassin’s Creed” publisher  Ubisoft  is trying to emerge from a rocky few years. From here, the biggest hurdle the French video game giant has to overcome is the mounting skepticism of fans — and employees — after disappointing or delayed releases and multiple pivots over a short period of time. Ubisoft co-founder and CEO Yves Guillemot is even facing calls from union leaders and others to step down amid the confusion caused by the company’s cost-cutting moves and zig – zags on strategy.