You can attain a higher rank by participating in and completing Co-op missions and Versus matches in Warface: Clutch. Every game you take part in awards you with Experience Points (XP), which are required to level up. Winning a match increases the amount of XP you receive, so it's always good to give it your best and try to emerge victoriously.
There are of course ways to progess faster. One would be to take part in higher difficulty missions in the Co-op mode, which yield higher rewards, but are also more demanding and require real teamwork from all of your fellow operatives. In particular, Special Operations offer the greatest rewards, but take longer to complete and are generally much more challenging, especially towards their later stages. They also require you to reach a certain rank before you can take them on!
Another way to rank up more quickly is to buy VIP, Mega VIP and XP boosters for Kredits, all of which increase your XP rewards and can be combined together for a whopping +265% bonus. This makes a huge difference and can save you a lot of time!
Limited amounts of XP are also included in some of the Random Boxes you can buy with WF$, so even if you fail to get the weapon you desire, you still get something that will allow you to attain a new rank faster.
Last but not least, Warface: Clutch HQ organizes special events on various occasions (and sometimes with no occasion at all!) that increase your rewards for specific or all missions and matches. These events are especially effective when combined with our Boosters!