Stealth is very important in Evasion, as the enemy can quickly rush the player once they are discovered. Dogs should take top priority since they can quickly sniff out and down the player in one hit. Move slowly and cautiously and stay out of enemy flashlights. Due to the M14 EBR being a suppressed weapon, killing groups of enemies quickly from long range is recommended, because, if left too long, enemies will disperse and become harder to find. The hazy weather also serves as a hindrance to the player, as seeing enemies can be difficult through the fog - however, this also works to the player's advantage as human enemies will also have difficulty in seeing them. Don't let this lull the player into a false sense of security since dogs, as mentioned above, rely on their nose rather than their eyes to find the player. The level itself is quite linear with the objective always marked (along with the player's distance away from it).
In co-op, when one of the players makes it to the end before the other and walks up to the fence, Price or MacTavish will alert the player that they've been spotted, even if there are no more enemies left.