DiRT 3

For this you need to play Outbreak, In outbreak 1 player gets infected at the start of the round and it is then their job to infect all other players by ramming them. Once infected a player switches sides and must help to infect any players that are left uninfected at that time. This can be boosted in a Jam Session. When going for it in a normal match the best strategy is to just always be prepared. Set yourself in a location where you will see the opponents coming and can easily escape when they do. For example the top of containers are great since when your opponent sees you, they need to work their way to the top and as they do you can easily jump off and escape. The infected cars are coloured green and they have all uninfected cars marked on their screen with an icon, so it's no use just hiding in an open container unless you get very lucky. It will be quite hard usually to get this in a 2 minute match but smaller matches are definitely better.