How modern games pack network variables into compact bitstreams:

Instead of full 32-bit floats, angles are quantized into 16-bit integers (uint16_t quantizedPitch = (uint16_t)((pitch + 89.0f) * (65535.0f / 178.0f))).

Inside BitRead / BitWrite classes in memory:

• ReadUBitLong(int numBits): Extracts non-byte-aligned variable length fields.
• ReadBitCoord(): Reads fractional 3D world coordinates.

Reverse engineering the bitstream serializer allows decoding live network packets from packet captures!

Bit packing is standard in Source, Unreal, and Unreal networked titles. Great breakdown of quantization math.

Quantized angles save massive bandwidth on 64-player servers.