As the infected, you must accept that the Boomer is the leader. Sounds strange, but in most cases it is best for the Boomer to initiate the attack. Even if the Boomer is only able to get one survivor, at the very least the swarm creates a distraction which decreases the likelihood of the survivors noticing the other infected. Therefore, a larger choice of opportunities should be open to the infected, for instance, it may allow certain infected to get closer, thus decreasing chances of failure.
It’s a good idea to find a partner as the Spitter. Find a ‘pinning’ (Charger, Hunter, Jockey, Smoker) infected that is waiting to spawn. Ideally, one should spawn and spit as soon as the survivor has been pinned. This is one of the only times at which the Spitter is going to have a stationary target. The resulting damage on the target is great and some collateral damage might be caused to other survivors.
If the survivor becomes incapacitated as a result of the attack, then a suicide mission should be in order. After spitting, run to the incapacitated survivor. The other survivors will kill you ergo causing slime to fall over the incapacitated survivor; if not, then you are free to hit the player until death. Either way, it should greatly increase your team’s infected score.
Score as Highly as Possible
This might seem quite obvious. However, if all survivors have been incapacitated or are about to be incapacitated, do not stop the attack! Just because you have defeated them this round does not mean you have won the match. Every point counts, because in the end one does not want to be on the team that loses by a mere 25 points.
Start as the Infected
In the lobby, if possible, in the Choose Character option choose Infected. My reasons for this are that you will be able to see what infected spawn when. This will give your team the foresight to anticipate dangerous areas, this is particularly useful when the Tank is about to come. It is also particularly useful at the beginning of a round when you undoubtedly know that that Boomer will come around the corner any second.
Plan Your Pounce
As the Hunter, against alert players your best chance to cause a great amount of damage shall be in your pounce. Unless very experienced with the Hunter, improvisation is not a good idea. It is almost always better to wait for a ‘perfect moment’. Find a high point, watch a position to which you can pounce and where you think the survivors might go. A good time to apply this would be when the survivors find new weapons. An example of this is the first leg of the Dark Carnival chapter; there is a bridge overlooking a car with weapons next to it.
Attack in Synchronisation
Perhaps another obvious one, but one of the most important. The survivors can easily help each other if the infected come one at a time. Attacking at the same time creates distractions, panic and indecision amongst the survivors. Boomer vomit is the ultimate weapon when it comes to causing panic and bad decision provoking situations. So, next time you spawn, think: “When are my teammates going to spawn?”.
Although recharge times are painfully long, it is worth waiting for another attack rather than always going for a kamikaze attack. Especially with the Boomer, although its recharge time is a daunting 30 seconds. However, the survivor hit survivors are blinded for half of this time. So, it would probably take about the same amount of time to wait for a new infected than it would for your old one to recharge. Remember, a kamikaze attack should be used when you are going to be killed anyway.