Infection

The Infection whilst it isn't a version of one of the Other Two itself. It's an infested vessel and for some reason the entire production line is infested.

Info
The infection has 12,500 health and it moves at 2/3 of the speed of a BFB

It's quite uncommon, it appears on a round slightly after an Infestor is first encountered.

It wields carrier bays, a pulse cannon and a shield.

Small bay
The Infection carries a dual small bay, these release bloons that have the standard infest, it creates them at a fairly decent rate.

It usually makes things like ceramics or things of a simular or greater class.

Each bay can spit out 10 bloons at a time (more if it's on a greater difficulty)

Large bay
There is also a single large bay that creates regular or occasionally heavily infested blimps, usually BFBs or things of a simular class (it will try to produce carriers however if possible).

The bay can churn out 1-2 at a time at a fairly slow rate.

Pulse cannon
On the top of the Infection is a laser/pulse cannon, when it's preparing to fire the barrel spins itself for a few seconds and then a series of 5 or so lasers are fired at towers, each shot does 2-3 damage and it applies the acid effect.

Shield
The shield is rather than a bubble it's a layer around the Infection, this completely protects it from almost all status effects (for example, freeze, glue, stun, poison ect.) whilst it's active. the shield has 2,500 health.

The bloons/blimps spawned also get these shields!

However it's power is reduced significantly, it has only 25 health on bloons and 250 health on blimps.