With the getting worse of the war situation, approximation to enemy tanks has gone very difficult. They lacked friend artillery or machine gun support, which were absolutely necessary for clear enemy infantry.
Anti-tank weapon with longer range can avoid accompaniment infantry. Pnzerschreck was one of these weapons. But it was too heavy to carry with rifles. So it was equipped only to Anti-tank team. Improvement of regular infantry's anti-tank capability was realized with Panzerfaust 60 and 100. These weapons extends its range by increasing propellant charge. But this method had reached limit at Panzerfaust 100. Panzerfaust 100 ejects ember after firing. So increasing propellant more was impossible.
For answer, they planned new warhead. Current Panzerfaust warhead has large diameter. While it was served for penetration capability, it also generated large air resistance. So, new small diameter warhead was made. It has less air resistance, and also same penetration by improved shaped charge. New weapon which has new warhead has been named "Panzerfaust 150". It had 150m range at maximum. This weapon was expected as new generation anti-tank weapon, and 100,000 units were produced before the end of the war.
Another weak point of Panzerfaust was its disposable. It was waste of materials. When the soldier carries two ammunitions, he was forced to carry two launchers weight. It was not big problem about early small Faustpatrone, but it was serious for new heavy Panzerfausts.
There, reloadable Panzerfaust was planned. The base of development was Panzerfaust 150, but to make it able to re-firing, its firing mechanism was totally remodelled. And also pistol grip was adopted. To use propellant energy fully, a venturi tube was attached to its back-end. It was named "Panzerfaust 250" and production starting was planned in September 1945.
Another new warhead was planned for several purpose. One of the problem of Panzerfaust was its demolition capability against tanks. When the warhead penetrates tank's armor, its crews was injured. But a tank damaged little, without blowing ammo rack. To make it blow off, Panzerbrandgranate was made. This new warhead contains shaped charge and incendiary shell. The incendiary shell was intended to go through the armor which punched with shaped charge and ignite ammo rack. In game, this warhead was adopted as "Brandfaust", improvement version of Panzerfaust 100, the.
About in-game performances, Panzerfaust 150 and 250 are simply improved version. Their flat trajectory makes hit probability higher in any distance. You can even hit a tank at 250 meter really. Fragment warhead for Panzerfaust 250 is good weapons for not only enemy infantry, but also MG nest. Brandfaust has same range as Panzerfaust 100, but it can destroy enemy tanks with mostly one round. Gasfaust and Flammfaust are good support weapons for covering friend's assault. They has penetration effect for buildings, so they can neutralize complex enemy position in a single burst. Gasfaust's gas remains long time so it has screening effect as substitute of smoke grenade.