Just a few more useful tips of new features in Delta.
-Your radar blips that are above or below you will now tell you whether they are above you, or below you, rather than just getting smaller and you not being sure where they are.
-Standing still or crouching (including crouch-walking) will take you off enemy radar and make your name disappear.
-Tanks receive varying damage depending on what parts you shoot (hitting the back does more damage, so aim for that if you can, but settle for the sides if you can't).
-Supply trucks refill C4. Great for Engineer or Tanya rushes.
-Bases that use tunnel basements typically have team-locked doors to accompany them, but spies can assist their friends in getting through Soviet doors (an underused feature that's extremely useful on KOTG).
-Just a nicety, but gap bubbles can now be seen into from the outside by friendlies.