Upgrade components include firepower, survivability and maneuverability. It was designed to be small, fast and agile to improve survivability and lethality. The AH-64 has significant systems redundancy to improve combat survivability. Geologic factors also play a major role in weapon effectiveness and facility survivability. Stryker strengths to quickly provide enhanced survivability and lower logistics costs. Responsible for developing core engineer capabilities in terms of Mobility, Countermobility & Survivability. Design criteria include rapid repair of battle damage, survivability, cost-effectiveness and off-road performance. There are seven wheels, which translates to a longer hull, heavier armor and increased survivability. The Surion is equipped with various survivability and damage reduction features. The alternate purpose is "look-down/shoot-down" capability required to improve military air combat survivability. Augments are divided in four categories&colon; damage, support, healing and survivability. Overall product improvement in the areas of survivability, RAM, and armament. These types of defenses had to be neutralized with a high degree of survivability. This has an obvious downside on the likelihood of passenger survivability in a war-zone. For improved pilot survivability the Ka-50 is fitted with a NPP Zvezda (transl.