The TL-7 has 1,500 HP, which is on the shallow end of the pool for its Tier and class. Spaced armor on the turret and hull is helpful, but with only 5 mm thickness, it's susceptible to HEAT rounds. Due to the shape of the turret, the closer it gets to the hull, the straighter the armor becomes, thus the less effective it is. Angling and side-scraping are key to survival against incoming fire, as the vehicle's armor isn't thick enough to reliably block enemy shots. Also, remember to keep the large commander cupola hidden!